diff --git a/extmod/ulab b/extmod/ulab
index a91b36986d..a746bd8e09 160000
--- a/extmod/ulab
+++ b/extmod/ulab
@@ -1 +1 @@
-Subproject commit a91b36986d81fd906a6232010778f2a93d690f8e
+Subproject commit a746bd8e0953853056ee405e2fa02c8ebca4fb79
diff --git a/locale/ID.po b/locale/ID.po
index 619f7e6b75..ab8aa844c8 100644
--- a/locale/ID.po
+++ b/locale/ID.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2020-03-30 17:03-0700\n"
+"POT-Creation-Date: 2020-04-13 19:22-0500\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -900,6 +900,7 @@ msgid "Invalid number of bits"
 msgstr ""
 
 #: shared-bindings/bitbangio/SPI.c shared-bindings/busio/SPI.c
+#: shared-bindings/displayio/FourWire.c
 msgid "Invalid phase"
 msgstr ""
 
@@ -931,6 +932,7 @@ msgid "Invalid pins for PWMOut"
 msgstr ""
 
 #: shared-bindings/bitbangio/SPI.c shared-bindings/busio/SPI.c
+#: shared-bindings/displayio/FourWire.c
 msgid "Invalid polarity"
 msgstr ""
 
@@ -1647,6 +1649,10 @@ msgstr ""
 msgid "array/bytes required on right side"
 msgstr ""
 
+#: extmod/ulab/code/numerical.c
+msgid "attempt to get argmin/argmax of an empty sequence"
+msgstr ""
+
 #: py/objstr.c
 msgid "attributes not supported yet"
 msgstr ""
@@ -2158,10 +2164,6 @@ msgstr ""
 msgid "full"
 msgstr ""
 
-#: extmod/ulab/code/linalg.c
-msgid "function defined for ndarrays only"
-msgstr ""
-
 #: py/argcheck.c
 msgid "function does not take keyword arguments"
 msgstr "fungsi tidak dapat mengambil argumen keyword"
@@ -2175,10 +2177,6 @@ msgstr "fungsi diharapkan setidaknya %d argumen, hanya mendapatkan %d"
 msgid "function got multiple values for argument '%q'"
 msgstr "fungsi mendapatkan nilai ganda untuk argumen '%q'"
 
-#: extmod/ulab/code/linalg.c
-msgid "function is defined for ndarrays only"
-msgstr ""
-
 #: py/argcheck.c
 #, c-format
 msgid "function missing %d required positional arguments"
@@ -2659,14 +2657,6 @@ msgstr "modul tidak ditemukan"
 msgid "only bit_depth=16 is supported"
 msgstr ""
 
-#: extmod/ulab/code/linalg.c
-msgid "only ndarray objects can be inverted"
-msgstr ""
-
-#: extmod/ulab/code/linalg.c
-msgid "only ndarrays can be inverted"
-msgstr ""
-
 #: ports/nrf/common-hal/audiobusio/PDMIn.c
 msgid "only sample_rate=16000 is supported"
 msgstr ""
@@ -2676,10 +2666,6 @@ msgstr ""
 msgid "only slices with step=1 (aka None) are supported"
 msgstr ""
 
-#: extmod/ulab/code/linalg.c
-msgid "only square matrices can be inverted"
-msgstr ""
-
 #: extmod/ulab/code/ndarray.c extmod/ulab/code/vectorise.c
 msgid "operands could not be broadcast together"
 msgstr ""
@@ -3095,7 +3081,7 @@ msgid "wrong argument type"
 msgstr ""
 
 #: extmod/ulab/code/ndarray.c
-msgid "wrong input type"
+msgid "wrong index type"
 msgstr ""
 
 #: py/objstr.c
@@ -3107,7 +3093,7 @@ msgid "wrong number of values to unpack"
 msgstr ""
 
 #: extmod/ulab/code/ndarray.c
-msgid "wrong operand type on the right hand side"
+msgid "wrong operand type"
 msgstr ""
 
 #: shared-module/displayio/Shape.c
diff --git a/locale/circuitpython.pot b/locale/circuitpython.pot
index 177eee2bf0..a421b4ef18 100644
--- a/locale/circuitpython.pot
+++ b/locale/circuitpython.pot
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2020-03-30 17:03-0700\n"
+"POT-Creation-Date: 2020-04-13 19:22-0500\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -889,6 +889,7 @@ msgid "Invalid number of bits"
 msgstr ""
 
 #: shared-bindings/bitbangio/SPI.c shared-bindings/busio/SPI.c
+#: shared-bindings/displayio/FourWire.c
 msgid "Invalid phase"
 msgstr ""
 
@@ -920,6 +921,7 @@ msgid "Invalid pins for PWMOut"
 msgstr ""
 
 #: shared-bindings/bitbangio/SPI.c shared-bindings/busio/SPI.c
+#: shared-bindings/displayio/FourWire.c
 msgid "Invalid polarity"
 msgstr ""
 
@@ -1624,6 +1626,10 @@ msgstr ""
 msgid "array/bytes required on right side"
 msgstr ""
 
+#: extmod/ulab/code/numerical.c
+msgid "attempt to get argmin/argmax of an empty sequence"
+msgstr ""
+
 #: py/objstr.c
 msgid "attributes not supported yet"
 msgstr ""
@@ -2134,10 +2140,6 @@ msgstr ""
 msgid "full"
 msgstr ""
 
-#: extmod/ulab/code/linalg.c
-msgid "function defined for ndarrays only"
-msgstr ""
-
 #: py/argcheck.c
 msgid "function does not take keyword arguments"
 msgstr ""
@@ -2151,10 +2153,6 @@ msgstr ""
 msgid "function got multiple values for argument '%q'"
 msgstr ""
 
-#: extmod/ulab/code/linalg.c
-msgid "function is defined for ndarrays only"
-msgstr ""
-
 #: py/argcheck.c
 #, c-format
 msgid "function missing %d required positional arguments"
@@ -2634,14 +2632,6 @@ msgstr ""
 msgid "only bit_depth=16 is supported"
 msgstr ""
 
-#: extmod/ulab/code/linalg.c
-msgid "only ndarray objects can be inverted"
-msgstr ""
-
-#: extmod/ulab/code/linalg.c
-msgid "only ndarrays can be inverted"
-msgstr ""
-
 #: ports/nrf/common-hal/audiobusio/PDMIn.c
 msgid "only sample_rate=16000 is supported"
 msgstr ""
@@ -2651,10 +2641,6 @@ msgstr ""
 msgid "only slices with step=1 (aka None) are supported"
 msgstr ""
 
-#: extmod/ulab/code/linalg.c
-msgid "only square matrices can be inverted"
-msgstr ""
-
 #: extmod/ulab/code/ndarray.c extmod/ulab/code/vectorise.c
 msgid "operands could not be broadcast together"
 msgstr ""
@@ -3069,7 +3055,7 @@ msgid "wrong argument type"
 msgstr ""
 
 #: extmod/ulab/code/ndarray.c
-msgid "wrong input type"
+msgid "wrong index type"
 msgstr ""
 
 #: py/objstr.c
@@ -3081,7 +3067,7 @@ msgid "wrong number of values to unpack"
 msgstr ""
 
 #: extmod/ulab/code/ndarray.c
-msgid "wrong operand type on the right hand side"
+msgid "wrong operand type"
 msgstr ""
 
 #: shared-module/displayio/Shape.c
diff --git a/locale/de_DE.po b/locale/de_DE.po
index 351da58936..ec343d7f20 100644
--- a/locale/de_DE.po
+++ b/locale/de_DE.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: \n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2020-03-30 17:03-0700\n"
+"POT-Creation-Date: 2020-04-13 19:22-0500\n"
 "PO-Revision-Date: 2018-07-27 11:55-0700\n"
 "Last-Translator: Pascal Deneaux\n"
 "Language-Team: Sebastian Plamauer, Pascal Deneaux\n"
@@ -897,6 +897,7 @@ msgid "Invalid number of bits"
 msgstr "Ungültige Anzahl von Bits"
 
 #: shared-bindings/bitbangio/SPI.c shared-bindings/busio/SPI.c
+#: shared-bindings/displayio/FourWire.c
 msgid "Invalid phase"
 msgstr "Ungültige Phase"
 
@@ -928,6 +929,7 @@ msgid "Invalid pins for PWMOut"
 msgstr ""
 
 #: shared-bindings/bitbangio/SPI.c shared-bindings/busio/SPI.c
+#: shared-bindings/displayio/FourWire.c
 msgid "Invalid polarity"
 msgstr "Ungültige Polarität"
 
@@ -1652,6 +1654,10 @@ msgstr ""
 msgid "array/bytes required on right side"
 msgstr "Array/Bytes auf der rechten Seite erforderlich"
 
+#: extmod/ulab/code/numerical.c
+msgid "attempt to get argmin/argmax of an empty sequence"
+msgstr ""
+
 #: py/objstr.c
 msgid "attributes not supported yet"
 msgstr "Attribute werden noch nicht unterstützt"
@@ -2163,10 +2169,6 @@ msgstr ""
 msgid "full"
 msgstr "voll"
 
-#: extmod/ulab/code/linalg.c
-msgid "function defined for ndarrays only"
-msgstr ""
-
 #: py/argcheck.c
 msgid "function does not take keyword arguments"
 msgstr "Funktion akzeptiert keine Keyword-Argumente"
@@ -2180,10 +2182,6 @@ msgstr "Funktion erwartet maximal %d Argumente, aber hat %d erhalten"
 msgid "function got multiple values for argument '%q'"
 msgstr "Funktion hat mehrere Werte für Argument '%q'"
 
-#: extmod/ulab/code/linalg.c
-msgid "function is defined for ndarrays only"
-msgstr ""
-
 #: py/argcheck.c
 #, c-format
 msgid "function missing %d required positional arguments"
@@ -2670,14 +2668,6 @@ msgstr "offset außerhalb der Grenzen"
 msgid "only bit_depth=16 is supported"
 msgstr "nur eine bit_depth=16 wird unterstützt"
 
-#: extmod/ulab/code/linalg.c
-msgid "only ndarray objects can be inverted"
-msgstr ""
-
-#: extmod/ulab/code/linalg.c
-msgid "only ndarrays can be inverted"
-msgstr ""
-
 #: ports/nrf/common-hal/audiobusio/PDMIn.c
 msgid "only sample_rate=16000 is supported"
 msgstr "nur eine sample_rate=16000 wird unterstützt"
@@ -2687,10 +2677,6 @@ msgstr "nur eine sample_rate=16000 wird unterstützt"
 msgid "only slices with step=1 (aka None) are supported"
 msgstr ""
 
-#: extmod/ulab/code/linalg.c
-msgid "only square matrices can be inverted"
-msgstr ""
-
 #: extmod/ulab/code/ndarray.c extmod/ulab/code/vectorise.c
 msgid "operands could not be broadcast together"
 msgstr ""
@@ -3114,7 +3100,7 @@ msgid "wrong argument type"
 msgstr ""
 
 #: extmod/ulab/code/ndarray.c
-msgid "wrong input type"
+msgid "wrong index type"
 msgstr ""
 
 #: py/objstr.c
@@ -3126,7 +3112,7 @@ msgid "wrong number of values to unpack"
 msgstr "falsche Anzahl zu entpackender Werte"
 
 #: extmod/ulab/code/ndarray.c
-msgid "wrong operand type on the right hand side"
+msgid "wrong operand type"
 msgstr ""
 
 #: shared-module/displayio/Shape.c
diff --git a/locale/en_US.po b/locale/en_US.po
index 095d175ebd..a28fc10302 100644
--- a/locale/en_US.po
+++ b/locale/en_US.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: \n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2020-03-30 17:03-0700\n"
+"POT-Creation-Date: 2020-04-13 19:22-0500\n"
 "PO-Revision-Date: 2018-07-27 11:55-0700\n"
 "Last-Translator: \n"
 "Language-Team: \n"
@@ -889,6 +889,7 @@ msgid "Invalid number of bits"
 msgstr ""
 
 #: shared-bindings/bitbangio/SPI.c shared-bindings/busio/SPI.c
+#: shared-bindings/displayio/FourWire.c
 msgid "Invalid phase"
 msgstr ""
 
@@ -920,6 +921,7 @@ msgid "Invalid pins for PWMOut"
 msgstr ""
 
 #: shared-bindings/bitbangio/SPI.c shared-bindings/busio/SPI.c
+#: shared-bindings/displayio/FourWire.c
 msgid "Invalid polarity"
 msgstr ""
 
@@ -1624,6 +1626,10 @@ msgstr ""
 msgid "array/bytes required on right side"
 msgstr ""
 
+#: extmod/ulab/code/numerical.c
+msgid "attempt to get argmin/argmax of an empty sequence"
+msgstr ""
+
 #: py/objstr.c
 msgid "attributes not supported yet"
 msgstr ""
@@ -2134,10 +2140,6 @@ msgstr ""
 msgid "full"
 msgstr ""
 
-#: extmod/ulab/code/linalg.c
-msgid "function defined for ndarrays only"
-msgstr ""
-
 #: py/argcheck.c
 msgid "function does not take keyword arguments"
 msgstr ""
@@ -2151,10 +2153,6 @@ msgstr ""
 msgid "function got multiple values for argument '%q'"
 msgstr ""
 
-#: extmod/ulab/code/linalg.c
-msgid "function is defined for ndarrays only"
-msgstr ""
-
 #: py/argcheck.c
 #, c-format
 msgid "function missing %d required positional arguments"
@@ -2634,14 +2632,6 @@ msgstr ""
 msgid "only bit_depth=16 is supported"
 msgstr ""
 
-#: extmod/ulab/code/linalg.c
-msgid "only ndarray objects can be inverted"
-msgstr ""
-
-#: extmod/ulab/code/linalg.c
-msgid "only ndarrays can be inverted"
-msgstr ""
-
 #: ports/nrf/common-hal/audiobusio/PDMIn.c
 msgid "only sample_rate=16000 is supported"
 msgstr ""
@@ -2651,10 +2641,6 @@ msgstr ""
 msgid "only slices with step=1 (aka None) are supported"
 msgstr ""
 
-#: extmod/ulab/code/linalg.c
-msgid "only square matrices can be inverted"
-msgstr ""
-
 #: extmod/ulab/code/ndarray.c extmod/ulab/code/vectorise.c
 msgid "operands could not be broadcast together"
 msgstr ""
@@ -3069,7 +3055,7 @@ msgid "wrong argument type"
 msgstr ""
 
 #: extmod/ulab/code/ndarray.c
-msgid "wrong input type"
+msgid "wrong index type"
 msgstr ""
 
 #: py/objstr.c
@@ -3081,7 +3067,7 @@ msgid "wrong number of values to unpack"
 msgstr ""
 
 #: extmod/ulab/code/ndarray.c
-msgid "wrong operand type on the right hand side"
+msgid "wrong operand type"
 msgstr ""
 
 #: shared-module/displayio/Shape.c
diff --git a/locale/en_x_pirate.po b/locale/en_x_pirate.po
index a7f00a7b2e..946c3af24f 100644
--- a/locale/en_x_pirate.po
+++ b/locale/en_x_pirate.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: \n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2020-03-30 17:03-0700\n"
+"POT-Creation-Date: 2020-04-13 19:22-0500\n"
 "PO-Revision-Date: 2018-07-27 11:55-0700\n"
 "Last-Translator: \n"
 "Language-Team: @sommersoft, @MrCertainly\n"
@@ -893,6 +893,7 @@ msgid "Invalid number of bits"
 msgstr ""
 
 #: shared-bindings/bitbangio/SPI.c shared-bindings/busio/SPI.c
+#: shared-bindings/displayio/FourWire.c
 msgid "Invalid phase"
 msgstr ""
 
@@ -924,6 +925,7 @@ msgid "Invalid pins for PWMOut"
 msgstr ""
 
 #: shared-bindings/bitbangio/SPI.c shared-bindings/busio/SPI.c
+#: shared-bindings/displayio/FourWire.c
 msgid "Invalid polarity"
 msgstr ""
 
@@ -1628,6 +1630,10 @@ msgstr ""
 msgid "array/bytes required on right side"
 msgstr ""
 
+#: extmod/ulab/code/numerical.c
+msgid "attempt to get argmin/argmax of an empty sequence"
+msgstr ""
+
 #: py/objstr.c
 msgid "attributes not supported yet"
 msgstr ""
@@ -2138,10 +2144,6 @@ msgstr ""
 msgid "full"
 msgstr ""
 
-#: extmod/ulab/code/linalg.c
-msgid "function defined for ndarrays only"
-msgstr ""
-
 #: py/argcheck.c
 msgid "function does not take keyword arguments"
 msgstr ""
@@ -2155,10 +2157,6 @@ msgstr ""
 msgid "function got multiple values for argument '%q'"
 msgstr ""
 
-#: extmod/ulab/code/linalg.c
-msgid "function is defined for ndarrays only"
-msgstr ""
-
 #: py/argcheck.c
 #, c-format
 msgid "function missing %d required positional arguments"
@@ -2638,14 +2636,6 @@ msgstr ""
 msgid "only bit_depth=16 is supported"
 msgstr ""
 
-#: extmod/ulab/code/linalg.c
-msgid "only ndarray objects can be inverted"
-msgstr ""
-
-#: extmod/ulab/code/linalg.c
-msgid "only ndarrays can be inverted"
-msgstr ""
-
 #: ports/nrf/common-hal/audiobusio/PDMIn.c
 msgid "only sample_rate=16000 is supported"
 msgstr ""
@@ -2655,10 +2645,6 @@ msgstr ""
 msgid "only slices with step=1 (aka None) are supported"
 msgstr ""
 
-#: extmod/ulab/code/linalg.c
-msgid "only square matrices can be inverted"
-msgstr ""
-
 #: extmod/ulab/code/ndarray.c extmod/ulab/code/vectorise.c
 msgid "operands could not be broadcast together"
 msgstr ""
@@ -3073,7 +3059,7 @@ msgid "wrong argument type"
 msgstr ""
 
 #: extmod/ulab/code/ndarray.c
-msgid "wrong input type"
+msgid "wrong index type"
 msgstr ""
 
 #: py/objstr.c
@@ -3085,7 +3071,7 @@ msgid "wrong number of values to unpack"
 msgstr ""
 
 #: extmod/ulab/code/ndarray.c
-msgid "wrong operand type on the right hand side"
+msgid "wrong operand type"
 msgstr ""
 
 #: shared-module/displayio/Shape.c
diff --git a/locale/es.po b/locale/es.po
index 3f4313de93..f3f6c45914 100644
--- a/locale/es.po
+++ b/locale/es.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: \n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2020-03-30 17:03-0700\n"
+"POT-Creation-Date: 2020-04-13 19:22-0500\n"
 "PO-Revision-Date: 2018-08-24 22:56-0500\n"
 "Last-Translator: \n"
 "Language-Team: \n"
@@ -897,6 +897,7 @@ msgid "Invalid number of bits"
 msgstr "Numero inválido de bits"
 
 #: shared-bindings/bitbangio/SPI.c shared-bindings/busio/SPI.c
+#: shared-bindings/displayio/FourWire.c
 msgid "Invalid phase"
 msgstr "Fase inválida"
 
@@ -928,6 +929,7 @@ msgid "Invalid pins for PWMOut"
 msgstr ""
 
 #: shared-bindings/bitbangio/SPI.c shared-bindings/busio/SPI.c
+#: shared-bindings/displayio/FourWire.c
 msgid "Invalid polarity"
 msgstr "Polaridad inválida"
 
@@ -1648,6 +1650,10 @@ msgstr ""
 msgid "array/bytes required on right side"
 msgstr "array/bytes requeridos en el lado derecho"
 
+#: extmod/ulab/code/numerical.c
+msgid "attempt to get argmin/argmax of an empty sequence"
+msgstr ""
+
 #: py/objstr.c
 msgid "attributes not supported yet"
 msgstr "atributos aún no soportados"
@@ -2165,10 +2171,6 @@ msgstr "format requiere un dict"
 msgid "full"
 msgstr "lleno"
 
-#: extmod/ulab/code/linalg.c
-msgid "function defined for ndarrays only"
-msgstr ""
-
 #: py/argcheck.c
 msgid "function does not take keyword arguments"
 msgstr "la función no tiene argumentos por palabra clave"
@@ -2182,10 +2184,6 @@ msgstr "la función esperaba minimo %d argumentos, tiene %d"
 msgid "function got multiple values for argument '%q'"
 msgstr "la función tiene múltiples valores para el argumento '%q'"
 
-#: extmod/ulab/code/linalg.c
-msgid "function is defined for ndarrays only"
-msgstr ""
-
 #: py/argcheck.c
 #, c-format
 msgid "function missing %d required positional arguments"
@@ -2672,14 +2670,6 @@ msgstr "address fuera de límites"
 msgid "only bit_depth=16 is supported"
 msgstr ""
 
-#: extmod/ulab/code/linalg.c
-msgid "only ndarray objects can be inverted"
-msgstr ""
-
-#: extmod/ulab/code/linalg.c
-msgid "only ndarrays can be inverted"
-msgstr ""
-
 #: ports/nrf/common-hal/audiobusio/PDMIn.c
 msgid "only sample_rate=16000 is supported"
 msgstr ""
@@ -2689,10 +2679,6 @@ msgstr ""
 msgid "only slices with step=1 (aka None) are supported"
 msgstr "solo se admiten segmentos con step=1 (alias None)"
 
-#: extmod/ulab/code/linalg.c
-msgid "only square matrices can be inverted"
-msgstr ""
-
 #: extmod/ulab/code/ndarray.c extmod/ulab/code/vectorise.c
 msgid "operands could not be broadcast together"
 msgstr ""
@@ -3110,7 +3096,7 @@ msgid "wrong argument type"
 msgstr ""
 
 #: extmod/ulab/code/ndarray.c
-msgid "wrong input type"
+msgid "wrong index type"
 msgstr ""
 
 #: py/objstr.c
@@ -3122,7 +3108,7 @@ msgid "wrong number of values to unpack"
 msgstr "numero erroneo de valores a descomprimir"
 
 #: extmod/ulab/code/ndarray.c
-msgid "wrong operand type on the right hand side"
+msgid "wrong operand type"
 msgstr ""
 
 #: shared-module/displayio/Shape.c
diff --git a/locale/fil.po b/locale/fil.po
index cd6f52c393..44da9b7557 100644
--- a/locale/fil.po
+++ b/locale/fil.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: \n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2020-03-30 17:03-0700\n"
+"POT-Creation-Date: 2020-04-13 19:22-0500\n"
 "PO-Revision-Date: 2018-12-20 22:15-0800\n"
 "Last-Translator: Timothy <me@timothygarcia.ca>\n"
 "Language-Team: fil\n"
@@ -905,6 +905,7 @@ msgid "Invalid number of bits"
 msgstr "Mali ang bilang ng bits"
 
 #: shared-bindings/bitbangio/SPI.c shared-bindings/busio/SPI.c
+#: shared-bindings/displayio/FourWire.c
 msgid "Invalid phase"
 msgstr "Mali ang phase"
 
@@ -936,6 +937,7 @@ msgid "Invalid pins for PWMOut"
 msgstr ""
 
 #: shared-bindings/bitbangio/SPI.c shared-bindings/busio/SPI.c
+#: shared-bindings/displayio/FourWire.c
 msgid "Invalid polarity"
 msgstr "Mali ang polarity"
 
@@ -1657,6 +1659,10 @@ msgstr ""
 msgid "array/bytes required on right side"
 msgstr "array/bytes kinakailangan sa kanang bahagi"
 
+#: extmod/ulab/code/numerical.c
+msgid "attempt to get argmin/argmax of an empty sequence"
+msgstr ""
+
 #: py/objstr.c
 msgid "attributes not supported yet"
 msgstr "attributes hindi sinusuportahan"
@@ -2179,10 +2185,6 @@ msgstr "kailangan ng format ng dict"
 msgid "full"
 msgstr "puno"
 
-#: extmod/ulab/code/linalg.c
-msgid "function defined for ndarrays only"
-msgstr ""
-
 #: py/argcheck.c
 msgid "function does not take keyword arguments"
 msgstr "ang function ay hindi kumukuha ng mga argumento ng keyword"
@@ -2196,10 +2198,6 @@ msgstr "function na inaasahang %d ang argumento, ngunit %d ang nakuha"
 msgid "function got multiple values for argument '%q'"
 msgstr "ang function ay nakakuha ng maraming values para sa argument '%q'"
 
-#: extmod/ulab/code/linalg.c
-msgid "function is defined for ndarrays only"
-msgstr ""
-
 #: py/argcheck.c
 #, c-format
 msgid "function missing %d required positional arguments"
@@ -2685,14 +2683,6 @@ msgstr "wala sa sakop ang address"
 msgid "only bit_depth=16 is supported"
 msgstr ""
 
-#: extmod/ulab/code/linalg.c
-msgid "only ndarray objects can be inverted"
-msgstr ""
-
-#: extmod/ulab/code/linalg.c
-msgid "only ndarrays can be inverted"
-msgstr ""
-
 #: ports/nrf/common-hal/audiobusio/PDMIn.c
 msgid "only sample_rate=16000 is supported"
 msgstr ""
@@ -2702,10 +2692,6 @@ msgstr ""
 msgid "only slices with step=1 (aka None) are supported"
 msgstr "ang mga slices lamang na may hakbang = 1 (aka None) ang sinusuportahan"
 
-#: extmod/ulab/code/linalg.c
-msgid "only square matrices can be inverted"
-msgstr ""
-
 #: extmod/ulab/code/ndarray.c extmod/ulab/code/vectorise.c
 msgid "operands could not be broadcast together"
 msgstr ""
@@ -3125,7 +3111,7 @@ msgid "wrong argument type"
 msgstr ""
 
 #: extmod/ulab/code/ndarray.c
-msgid "wrong input type"
+msgid "wrong index type"
 msgstr ""
 
 #: py/objstr.c
@@ -3137,7 +3123,7 @@ msgid "wrong number of values to unpack"
 msgstr "maling number ng value na i-unpack"
 
 #: extmod/ulab/code/ndarray.c
-msgid "wrong operand type on the right hand side"
+msgid "wrong operand type"
 msgstr ""
 
 #: shared-module/displayio/Shape.c
diff --git a/locale/fr.po b/locale/fr.po
index 64abb8f9fd..17746f41fd 100644
--- a/locale/fr.po
+++ b/locale/fr.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: 0.1\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2020-03-30 17:03-0700\n"
+"POT-Creation-Date: 2020-04-13 19:22-0500\n"
 "PO-Revision-Date: 2019-04-14 20:05+0100\n"
 "Last-Translator: Pierrick Couturier <arofarn@arofarn.info>\n"
 "Language-Team: fr\n"
@@ -911,6 +911,7 @@ msgid "Invalid number of bits"
 msgstr "Nombre de bits invalide"
 
 #: shared-bindings/bitbangio/SPI.c shared-bindings/busio/SPI.c
+#: shared-bindings/displayio/FourWire.c
 msgid "Invalid phase"
 msgstr "Phase invalide"
 
@@ -942,6 +943,7 @@ msgid "Invalid pins for PWMOut"
 msgstr ""
 
 #: shared-bindings/bitbangio/SPI.c shared-bindings/busio/SPI.c
+#: shared-bindings/displayio/FourWire.c
 msgid "Invalid polarity"
 msgstr "Polarité invalide"
 
@@ -1674,6 +1676,10 @@ msgstr ""
 msgid "array/bytes required on right side"
 msgstr "tableau/octets requis à droite"
 
+#: extmod/ulab/code/numerical.c
+msgid "attempt to get argmin/argmax of an empty sequence"
+msgstr ""
+
 #: py/objstr.c
 msgid "attributes not supported yet"
 msgstr "attribut pas encore supporté"
@@ -2204,10 +2210,6 @@ msgstr "le format nécessite un dict"
 msgid "full"
 msgstr "plein"
 
-#: extmod/ulab/code/linalg.c
-msgid "function defined for ndarrays only"
-msgstr ""
-
 #: py/argcheck.c
 msgid "function does not take keyword arguments"
 msgstr "la fonction ne prend pas d'arguments nommés"
@@ -2221,10 +2223,6 @@ msgstr "la fonction attendait au plus %d arguments, reçu %d"
 msgid "function got multiple values for argument '%q'"
 msgstr "la fonction a reçu plusieurs valeurs pour l'argument '%q'"
 
-#: extmod/ulab/code/linalg.c
-msgid "function is defined for ndarrays only"
-msgstr ""
-
 #: py/argcheck.c
 #, c-format
 msgid "function missing %d required positional arguments"
@@ -2712,14 +2710,6 @@ msgstr "adresse hors limites"
 msgid "only bit_depth=16 is supported"
 msgstr ""
 
-#: extmod/ulab/code/linalg.c
-msgid "only ndarray objects can be inverted"
-msgstr ""
-
-#: extmod/ulab/code/linalg.c
-msgid "only ndarrays can be inverted"
-msgstr ""
-
 #: ports/nrf/common-hal/audiobusio/PDMIn.c
 msgid "only sample_rate=16000 is supported"
 msgstr ""
@@ -2729,10 +2719,6 @@ msgstr ""
 msgid "only slices with step=1 (aka None) are supported"
 msgstr "seules les tranches avec 'step=1' (cad None) sont supportées"
 
-#: extmod/ulab/code/linalg.c
-msgid "only square matrices can be inverted"
-msgstr ""
-
 #: extmod/ulab/code/ndarray.c extmod/ulab/code/vectorise.c
 msgid "operands could not be broadcast together"
 msgstr ""
@@ -3159,7 +3145,7 @@ msgid "wrong argument type"
 msgstr ""
 
 #: extmod/ulab/code/ndarray.c
-msgid "wrong input type"
+msgid "wrong index type"
 msgstr ""
 
 #: py/objstr.c
@@ -3171,7 +3157,7 @@ msgid "wrong number of values to unpack"
 msgstr "mauvais nombre de valeurs à dégrouper"
 
 #: extmod/ulab/code/ndarray.c
-msgid "wrong operand type on the right hand side"
+msgid "wrong operand type"
 msgstr ""
 
 #: shared-module/displayio/Shape.c
diff --git a/locale/it_IT.po b/locale/it_IT.po
index 89fb9329e2..1717f20f95 100644
--- a/locale/it_IT.po
+++ b/locale/it_IT.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2020-03-30 17:03-0700\n"
+"POT-Creation-Date: 2020-04-13 19:22-0500\n"
 "PO-Revision-Date: 2018-10-02 16:27+0200\n"
 "Last-Translator: Enrico Paganin <enrico.paganin@mail.com>\n"
 "Language-Team: \n"
@@ -907,6 +907,7 @@ msgid "Invalid number of bits"
 msgstr "Numero di bit non valido"
 
 #: shared-bindings/bitbangio/SPI.c shared-bindings/busio/SPI.c
+#: shared-bindings/displayio/FourWire.c
 msgid "Invalid phase"
 msgstr "Fase non valida"
 
@@ -938,6 +939,7 @@ msgid "Invalid pins for PWMOut"
 msgstr ""
 
 #: shared-bindings/bitbangio/SPI.c shared-bindings/busio/SPI.c
+#: shared-bindings/displayio/FourWire.c
 msgid "Invalid polarity"
 msgstr "Polarità non valida"
 
@@ -1660,6 +1662,10 @@ msgstr ""
 msgid "array/bytes required on right side"
 msgstr ""
 
+#: extmod/ulab/code/numerical.c
+msgid "attempt to get argmin/argmax of an empty sequence"
+msgstr ""
+
 #: py/objstr.c
 msgid "attributes not supported yet"
 msgstr "attributi non ancora supportati"
@@ -2180,10 +2186,6 @@ msgstr "la formattazione richiede un dict"
 msgid "full"
 msgstr "pieno"
 
-#: extmod/ulab/code/linalg.c
-msgid "function defined for ndarrays only"
-msgstr ""
-
 #: py/argcheck.c
 msgid "function does not take keyword arguments"
 msgstr "la funzione non prende argomenti nominati"
@@ -2197,10 +2199,6 @@ msgstr "la funzione prevede al massimo %d argmoneti, ma ne ha ricevuti %d"
 msgid "function got multiple values for argument '%q'"
 msgstr "la funzione ha ricevuto valori multipli per l'argomento '%q'"
 
-#: extmod/ulab/code/linalg.c
-msgid "function is defined for ndarrays only"
-msgstr ""
-
 #: py/argcheck.c
 #, c-format
 msgid "function missing %d required positional arguments"
@@ -2690,14 +2688,6 @@ msgstr "indirizzo fuori limite"
 msgid "only bit_depth=16 is supported"
 msgstr ""
 
-#: extmod/ulab/code/linalg.c
-msgid "only ndarray objects can be inverted"
-msgstr ""
-
-#: extmod/ulab/code/linalg.c
-msgid "only ndarrays can be inverted"
-msgstr ""
-
 #: ports/nrf/common-hal/audiobusio/PDMIn.c
 msgid "only sample_rate=16000 is supported"
 msgstr ""
@@ -2707,10 +2697,6 @@ msgstr ""
 msgid "only slices with step=1 (aka None) are supported"
 msgstr "solo slice con step=1 (aka None) sono supportate"
 
-#: extmod/ulab/code/linalg.c
-msgid "only square matrices can be inverted"
-msgstr ""
-
 #: extmod/ulab/code/ndarray.c extmod/ulab/code/vectorise.c
 msgid "operands could not be broadcast together"
 msgstr ""
@@ -3132,7 +3118,7 @@ msgid "wrong argument type"
 msgstr ""
 
 #: extmod/ulab/code/ndarray.c
-msgid "wrong input type"
+msgid "wrong index type"
 msgstr ""
 
 #: py/objstr.c
@@ -3144,7 +3130,7 @@ msgid "wrong number of values to unpack"
 msgstr "numero di valori da scompattare non corretto"
 
 #: extmod/ulab/code/ndarray.c
-msgid "wrong operand type on the right hand side"
+msgid "wrong operand type"
 msgstr ""
 
 #: shared-module/displayio/Shape.c
diff --git a/locale/ko.po b/locale/ko.po
index d502e60c07..9a1770f33b 100644
--- a/locale/ko.po
+++ b/locale/ko.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2020-03-30 17:03-0700\n"
+"POT-Creation-Date: 2020-04-13 19:22-0500\n"
 "PO-Revision-Date: 2019-05-06 14:22-0700\n"
 "Last-Translator: \n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -893,6 +893,7 @@ msgid "Invalid number of bits"
 msgstr "비트 수가 유효하지 않습니다"
 
 #: shared-bindings/bitbangio/SPI.c shared-bindings/busio/SPI.c
+#: shared-bindings/displayio/FourWire.c
 msgid "Invalid phase"
 msgstr "단계가 잘못되었습니다"
 
@@ -924,6 +925,7 @@ msgid "Invalid pins for PWMOut"
 msgstr ""
 
 #: shared-bindings/bitbangio/SPI.c shared-bindings/busio/SPI.c
+#: shared-bindings/displayio/FourWire.c
 msgid "Invalid polarity"
 msgstr ""
 
@@ -1629,6 +1631,10 @@ msgstr ""
 msgid "array/bytes required on right side"
 msgstr ""
 
+#: extmod/ulab/code/numerical.c
+msgid "attempt to get argmin/argmax of an empty sequence"
+msgstr ""
+
 #: py/objstr.c
 msgid "attributes not supported yet"
 msgstr ""
@@ -2139,10 +2145,6 @@ msgstr ""
 msgid "full"
 msgstr "완전한(full)"
 
-#: extmod/ulab/code/linalg.c
-msgid "function defined for ndarrays only"
-msgstr ""
-
 #: py/argcheck.c
 msgid "function does not take keyword arguments"
 msgstr ""
@@ -2156,10 +2158,6 @@ msgstr ""
 msgid "function got multiple values for argument '%q'"
 msgstr ""
 
-#: extmod/ulab/code/linalg.c
-msgid "function is defined for ndarrays only"
-msgstr ""
-
 #: py/argcheck.c
 #, c-format
 msgid "function missing %d required positional arguments"
@@ -2639,14 +2637,6 @@ msgstr ""
 msgid "only bit_depth=16 is supported"
 msgstr ""
 
-#: extmod/ulab/code/linalg.c
-msgid "only ndarray objects can be inverted"
-msgstr ""
-
-#: extmod/ulab/code/linalg.c
-msgid "only ndarrays can be inverted"
-msgstr ""
-
 #: ports/nrf/common-hal/audiobusio/PDMIn.c
 msgid "only sample_rate=16000 is supported"
 msgstr ""
@@ -2656,10 +2646,6 @@ msgstr ""
 msgid "only slices with step=1 (aka None) are supported"
 msgstr ""
 
-#: extmod/ulab/code/linalg.c
-msgid "only square matrices can be inverted"
-msgstr ""
-
 #: extmod/ulab/code/ndarray.c extmod/ulab/code/vectorise.c
 msgid "operands could not be broadcast together"
 msgstr ""
@@ -3074,7 +3060,7 @@ msgid "wrong argument type"
 msgstr ""
 
 #: extmod/ulab/code/ndarray.c
-msgid "wrong input type"
+msgid "wrong index type"
 msgstr ""
 
 #: py/objstr.c
@@ -3086,7 +3072,7 @@ msgid "wrong number of values to unpack"
 msgstr ""
 
 #: extmod/ulab/code/ndarray.c
-msgid "wrong operand type on the right hand side"
+msgid "wrong operand type"
 msgstr ""
 
 #: shared-module/displayio/Shape.c
diff --git a/locale/pl.po b/locale/pl.po
index 67eff44f3a..d26dff9416 100644
--- a/locale/pl.po
+++ b/locale/pl.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: \n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2020-03-30 17:03-0700\n"
+"POT-Creation-Date: 2020-04-13 19:22-0500\n"
 "PO-Revision-Date: 2019-03-19 18:37-0700\n"
 "Last-Translator: Radomir Dopieralski <circuitpython@sheep.art.pl>\n"
 "Language-Team: pl\n"
@@ -894,6 +894,7 @@ msgid "Invalid number of bits"
 msgstr "Zła liczba bitów"
 
 #: shared-bindings/bitbangio/SPI.c shared-bindings/busio/SPI.c
+#: shared-bindings/displayio/FourWire.c
 msgid "Invalid phase"
 msgstr "Zła faza"
 
@@ -925,6 +926,7 @@ msgid "Invalid pins for PWMOut"
 msgstr ""
 
 #: shared-bindings/bitbangio/SPI.c shared-bindings/busio/SPI.c
+#: shared-bindings/displayio/FourWire.c
 msgid "Invalid polarity"
 msgstr "Zła polaryzacja"
 
@@ -1632,6 +1634,10 @@ msgstr ""
 msgid "array/bytes required on right side"
 msgstr "tablica/bytes wymagane po prawej stronie"
 
+#: extmod/ulab/code/numerical.c
+msgid "attempt to get argmin/argmax of an empty sequence"
+msgstr ""
+
 #: py/objstr.c
 msgid "attributes not supported yet"
 msgstr "atrybuty nie są jeszcze obsługiwane"
@@ -2143,10 +2149,6 @@ msgstr "format wymaga słownika"
 msgid "full"
 msgstr "pełny"
 
-#: extmod/ulab/code/linalg.c
-msgid "function defined for ndarrays only"
-msgstr ""
-
 #: py/argcheck.c
 msgid "function does not take keyword arguments"
 msgstr "funkcja nie bierze argumentów nazwanych"
@@ -2160,10 +2162,6 @@ msgstr "funkcja bierze najwyżej %d argumentów, jest %d"
 msgid "function got multiple values for argument '%q'"
 msgstr "funkcja dostała wiele wartości dla argumentu '%q'"
 
-#: extmod/ulab/code/linalg.c
-msgid "function is defined for ndarrays only"
-msgstr ""
-
 #: py/argcheck.c
 #, c-format
 msgid "function missing %d required positional arguments"
@@ -2643,14 +2641,6 @@ msgstr "offset poza zakresem"
 msgid "only bit_depth=16 is supported"
 msgstr ""
 
-#: extmod/ulab/code/linalg.c
-msgid "only ndarray objects can be inverted"
-msgstr ""
-
-#: extmod/ulab/code/linalg.c
-msgid "only ndarrays can be inverted"
-msgstr ""
-
 #: ports/nrf/common-hal/audiobusio/PDMIn.c
 msgid "only sample_rate=16000 is supported"
 msgstr ""
@@ -2660,10 +2650,6 @@ msgstr ""
 msgid "only slices with step=1 (aka None) are supported"
 msgstr "tylko fragmenty ze step=1 (lub None) są wspierane"
 
-#: extmod/ulab/code/linalg.c
-msgid "only square matrices can be inverted"
-msgstr ""
-
 #: extmod/ulab/code/ndarray.c extmod/ulab/code/vectorise.c
 msgid "operands could not be broadcast together"
 msgstr ""
@@ -3080,7 +3066,7 @@ msgid "wrong argument type"
 msgstr ""
 
 #: extmod/ulab/code/ndarray.c
-msgid "wrong input type"
+msgid "wrong index type"
 msgstr ""
 
 #: py/objstr.c
@@ -3092,7 +3078,7 @@ msgid "wrong number of values to unpack"
 msgstr "zła liczba wartości do rozpakowania"
 
 #: extmod/ulab/code/ndarray.c
-msgid "wrong operand type on the right hand side"
+msgid "wrong operand type"
 msgstr ""
 
 #: shared-module/displayio/Shape.c
diff --git a/locale/pt_BR.po b/locale/pt_BR.po
index c6fe5dcba2..153dadd910 100644
--- a/locale/pt_BR.po
+++ b/locale/pt_BR.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2020-03-30 17:03-0700\n"
+"POT-Creation-Date: 2020-04-13 19:22-0500\n"
 "PO-Revision-Date: 2018-10-02 21:14-0000\n"
 "Last-Translator: \n"
 "Language-Team: \n"
@@ -900,6 +900,7 @@ msgid "Invalid number of bits"
 msgstr "Número inválido de bits"
 
 #: shared-bindings/bitbangio/SPI.c shared-bindings/busio/SPI.c
+#: shared-bindings/displayio/FourWire.c
 msgid "Invalid phase"
 msgstr "Fase Inválida"
 
@@ -931,6 +932,7 @@ msgid "Invalid pins for PWMOut"
 msgstr ""
 
 #: shared-bindings/bitbangio/SPI.c shared-bindings/busio/SPI.c
+#: shared-bindings/displayio/FourWire.c
 msgid "Invalid polarity"
 msgstr ""
 
@@ -1642,6 +1644,10 @@ msgstr ""
 msgid "array/bytes required on right side"
 msgstr ""
 
+#: extmod/ulab/code/numerical.c
+msgid "attempt to get argmin/argmax of an empty sequence"
+msgstr ""
+
 #: py/objstr.c
 msgid "attributes not supported yet"
 msgstr "atributos ainda não suportados"
@@ -2156,10 +2162,6 @@ msgstr ""
 msgid "full"
 msgstr "cheio"
 
-#: extmod/ulab/code/linalg.c
-msgid "function defined for ndarrays only"
-msgstr ""
-
 #: py/argcheck.c
 msgid "function does not take keyword arguments"
 msgstr "função não aceita argumentos de palavras-chave"
@@ -2173,10 +2175,6 @@ msgstr "função esperada na maioria dos %d argumentos, obteve %d"
 msgid "function got multiple values for argument '%q'"
 msgstr ""
 
-#: extmod/ulab/code/linalg.c
-msgid "function is defined for ndarrays only"
-msgstr ""
-
 #: py/argcheck.c
 #, c-format
 msgid "function missing %d required positional arguments"
@@ -2656,14 +2654,6 @@ msgstr ""
 msgid "only bit_depth=16 is supported"
 msgstr ""
 
-#: extmod/ulab/code/linalg.c
-msgid "only ndarray objects can be inverted"
-msgstr ""
-
-#: extmod/ulab/code/linalg.c
-msgid "only ndarrays can be inverted"
-msgstr ""
-
 #: ports/nrf/common-hal/audiobusio/PDMIn.c
 msgid "only sample_rate=16000 is supported"
 msgstr ""
@@ -2673,10 +2663,6 @@ msgstr ""
 msgid "only slices with step=1 (aka None) are supported"
 msgstr ""
 
-#: extmod/ulab/code/linalg.c
-msgid "only square matrices can be inverted"
-msgstr ""
-
 #: extmod/ulab/code/ndarray.c extmod/ulab/code/vectorise.c
 msgid "operands could not be broadcast together"
 msgstr ""
@@ -3093,7 +3079,7 @@ msgid "wrong argument type"
 msgstr ""
 
 #: extmod/ulab/code/ndarray.c
-msgid "wrong input type"
+msgid "wrong index type"
 msgstr ""
 
 #: py/objstr.c
@@ -3105,7 +3091,7 @@ msgid "wrong number of values to unpack"
 msgstr ""
 
 #: extmod/ulab/code/ndarray.c
-msgid "wrong operand type on the right hand side"
+msgid "wrong operand type"
 msgstr ""
 
 #: shared-module/displayio/Shape.c
diff --git a/locale/zh_Latn_pinyin.po b/locale/zh_Latn_pinyin.po
index 8be47eb864..d1c0d5b79c 100644
--- a/locale/zh_Latn_pinyin.po
+++ b/locale/zh_Latn_pinyin.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: circuitpython-cn\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2020-03-30 17:03-0700\n"
+"POT-Creation-Date: 2020-04-13 19:22-0500\n"
 "PO-Revision-Date: 2019-04-13 10:10-0700\n"
 "Last-Translator: hexthat\n"
 "Language-Team: Chinese Hanyu Pinyin\n"
@@ -902,6 +902,7 @@ msgid "Invalid number of bits"
 msgstr "Wèi shù wúxiào"
 
 #: shared-bindings/bitbangio/SPI.c shared-bindings/busio/SPI.c
+#: shared-bindings/displayio/FourWire.c
 msgid "Invalid phase"
 msgstr "Jiēduàn wúxiào"
 
@@ -933,6 +934,7 @@ msgid "Invalid pins for PWMOut"
 msgstr ""
 
 #: shared-bindings/bitbangio/SPI.c shared-bindings/busio/SPI.c
+#: shared-bindings/displayio/FourWire.c
 msgid "Invalid polarity"
 msgstr "Wúxiào liǎng jí zhí"
 
@@ -1657,6 +1659,10 @@ msgstr ""
 msgid "array/bytes required on right side"
 msgstr "yòu cè xūyào shùzǔ/zì jié"
 
+#: extmod/ulab/code/numerical.c
+msgid "attempt to get argmin/argmax of an empty sequence"
+msgstr ""
+
 #: py/objstr.c
 msgid "attributes not supported yet"
 msgstr "shǔxìng shàngwèi zhīchí"
@@ -2171,10 +2177,6 @@ msgstr "géshì yāoqiú yīgè yǔjù"
 msgid "full"
 msgstr "chōngfèn"
 
-#: extmod/ulab/code/linalg.c
-msgid "function defined for ndarrays only"
-msgstr ""
-
 #: py/argcheck.c
 msgid "function does not take keyword arguments"
 msgstr "hánshù méiyǒu guānjiàn cí cānshù"
@@ -2188,10 +2190,6 @@ msgstr "hánshù yùjì zuìduō %d cānshù, huòdé %d"
 msgid "function got multiple values for argument '%q'"
 msgstr "hánshù huòdé cānshù '%q' de duōchóng zhí"
 
-#: extmod/ulab/code/linalg.c
-msgid "function is defined for ndarrays only"
-msgstr ""
-
 #: py/argcheck.c
 #, c-format
 msgid "function missing %d required positional arguments"
@@ -2673,14 +2671,6 @@ msgstr "piānlí biānjiè"
 msgid "only bit_depth=16 is supported"
 msgstr "Jǐn zhīchí wèi shēndù = 16"
 
-#: extmod/ulab/code/linalg.c
-msgid "only ndarray objects can be inverted"
-msgstr ""
-
-#: extmod/ulab/code/linalg.c
-msgid "only ndarrays can be inverted"
-msgstr ""
-
 #: ports/nrf/common-hal/audiobusio/PDMIn.c
 msgid "only sample_rate=16000 is supported"
 msgstr "Jǐn zhīchí cǎiyàng lǜ = 16000"
@@ -2690,10 +2680,6 @@ msgstr "Jǐn zhīchí cǎiyàng lǜ = 16000"
 msgid "only slices with step=1 (aka None) are supported"
 msgstr "jǐn zhīchí bù zhǎng = 1(jí wú) de qiēpiàn"
 
-#: extmod/ulab/code/linalg.c
-msgid "only square matrices can be inverted"
-msgstr ""
-
 #: extmod/ulab/code/ndarray.c extmod/ulab/code/vectorise.c
 msgid "operands could not be broadcast together"
 msgstr ""
@@ -3110,7 +3096,7 @@ msgid "wrong argument type"
 msgstr ""
 
 #: extmod/ulab/code/ndarray.c
-msgid "wrong input type"
+msgid "wrong index type"
 msgstr ""
 
 #: py/objstr.c
@@ -3122,7 +3108,7 @@ msgid "wrong number of values to unpack"
 msgstr "wúfǎ jiě bāo de zhí shù"
 
 #: extmod/ulab/code/ndarray.c
-msgid "wrong operand type on the right hand side"
+msgid "wrong operand type"
 msgstr ""
 
 #: shared-module/displayio/Shape.c
diff --git a/ports/cxd56/boards/spresense/mpconfigboard.h b/ports/cxd56/boards/spresense/mpconfigboard.h
index 0245e20450..c53f6b418c 100644
--- a/ports/cxd56/boards/spresense/mpconfigboard.h
+++ b/ports/cxd56/boards/spresense/mpconfigboard.h
@@ -36,3 +36,6 @@
 
 #define DEFAULT_UART_BUS_RX (&pin_UART2_RXD)
 #define DEFAULT_UART_BUS_TX (&pin_UART2_TXD)
+
+#define MICROPY_PY_REVERSE_SPECIAL_METHODS          (1)
+
diff --git a/ports/mimxrt10xx/mpconfigport.h b/ports/mimxrt10xx/mpconfigport.h
index 745c12f7de..7e7df01230 100644
--- a/ports/mimxrt10xx/mpconfigport.h
+++ b/ports/mimxrt10xx/mpconfigport.h
@@ -44,7 +44,7 @@ extern uint8_t _ld_default_stack_size;
 #define MICROPY_PY_FUNCTION_ATTRS                   (0)
 #define MICROPY_PY_IO                               (1)
 #define MICROPY_PY_UJSON                            (1)
-#define MICROPY_PY_REVERSE_SPECIAL_METHODS          (0)
+#define MICROPY_PY_REVERSE_SPECIAL_METHODS          (1)
 
 
 #define CIRCUITPY_INTERNAL_FLASH_FILESYSTEM_START_ADDR ((uint32_t) &_ld_filesystem_start)
diff --git a/py/py.mk b/py/py.mk
index bac237b7dd..bca6ac14c3 100644
--- a/py/py.mk
+++ b/py/py.mk
@@ -119,7 +119,7 @@ ulab.c \
 vectorise.c \
 	)
 CFLAGS_MOD += -DCIRCUITPY_ULAB=1 -DMODULE_ULAB_ENABLED=1
-$(BUILD)/extmod/ulab/code/%.o: CFLAGS += -Wno-sign-compare -Wno-missing-prototypes -Wno-unused-parameter -Wno-missing-declarations -Wno-error -Wno-shadow -Wno-maybe-uninitialized -DCIRCUITPY
+$(BUILD)/extmod/ulab/code/%.o: CFLAGS += -Wno-float-equal -Wno-sign-compare -DCIRCUITPY
 endif
 
 # External modules written in C.
diff --git a/shared-bindings/ulab/__init__.rst b/shared-bindings/ulab/__init__.rst
index d8c10dcc86..c9f2617ff0 100644
--- a/shared-bindings/ulab/__init__.rst
+++ b/shared-bindings/ulab/__init__.rst
@@ -79,26 +79,30 @@ ulab.array -- 1- and 2- dimensional array
    .. method:: __add__()
 
       Adds corresponding elements of the two arrays, or adds a number to all
-      elements of the array.  A number must be on the right hand side.  If
-      both arguments are arrays, their sizes must match.
+      elements of the array.  If both arguments are arrays, their sizes must match.
 
    .. method:: __sub__()
 
-      Subtracts corresponding elements of the two arrays, or subtracts a
-      number from all elements of the array.  A number must be on the right
-      hand side.  If both arguments are arrays, their sizes must match.
+      Subtracts corresponding elements of the two arrays, or adds a number to all
+      elements of the array.  If both arguments are arrays, their sizes must match.
 
    .. method:: __mul__()
 
       Multiplies corresponding elements of the two arrays, or multiplies
-      all elements of the array by a number.  A number must be on the right
-      hand side.  If both arguments are arrays, their sizes must match.
+      all elements of the array by a number.  If both arguments are arrays,
+      their sizes must match.
 
    .. method:: __div__()
 
       Multiplies corresponding elements of the two arrays, or divides
-      all elements of the array by a number.  A number must be on the right
-      hand side.  If both arguments are arrays, their sizes must match.
+      all elements of the array by a number.  If both arguments are arrays,
+      their sizes must match.
+
+   .. method:: __pow__()
+
+      Computes the power (x**y) of corresponding elements of the the two arrays,
+      or one number and one array.  If both arguments are arrays, their sizes
+      must match.
 
    .. method:: __getitem__()
 
@@ -348,6 +352,12 @@ much more efficient than expressing the same operation as a Python loop.
 
    Return the total number of elements in the array, as an integer.
 
+.. method:: trace(m)
+
+   :param m: a square matrix
+
+   Compute the trace of the matrix, the sum of its diagonal elements.
+
 :mod:`ulab.filter` --- Filtering functions
 ==========================================
 
@@ -404,11 +414,11 @@ operate over the flattened array (None), rows (0), or columns (1).
 
 .. method:: argmax(array, \*, axis=None)
 
-   Return the index of the maximum element of the 1D array, as an array with 1 element
+   Return the index of the maximum element of the 1D array
 
 .. method:: argmin(array, \*, axis=None)
 
-   Return the index of the minimum element of the 1D array, as an array with 1 element
+   Return the index of the minimum element of the 1D array
 
 .. method:: argsort(array, \*, axis=None)
 
@@ -426,7 +436,7 @@ operate over the flattened array (None), rows (0), or columns (1).
 
 .. method:: max(array, \*, axis=None)
 
-   Return the maximum element of the 1D array, as an array with 1 element
+   Return the maximum element of the 1D array
 
 .. method:: mean(array, \*, axis=None)
 
@@ -434,7 +444,7 @@ operate over the flattened array (None), rows (0), or columns (1).
 
 .. method:: min(array, \*, axis=None)
 
-   Return the minimum element of the 1D array, as an array with 1 element
+   Return the minimum element of the 1D array
 
 .. method:: roll(array, distance, \*, axis=None)
 
diff --git a/tests/run-tests b/tests/run-tests
index f6c727a8a6..6e980f03ce 100755
--- a/tests/run-tests
+++ b/tests/run-tests
@@ -385,6 +385,7 @@ def run_tests(pyb, tests, args, base_path=".", num_threads=1):
         skip_tests.add('stress/gc_trace.py') # requires yield
         skip_tests.add('stress/recursive_gen.py') # requires yield
         skip_tests.add('extmod/vfs_userfs.py') # because native doesn't properly handle globals across different modules
+        skip_tests.add('../extmod/ulab/tests/argminmax.py') # requires yield
 
     def run_one_test(test_file):
         test_file = test_file.replace('\\', '/')