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3 Commits

Author SHA1 Message Date
Andrew Leech 57a73973ad lib/libm_dbl: Add implementation of copysign() for DEBUG builds. 
This provides a double variant of the float copysignf from libm/math.c
which is required for DEBUG=1 builds when MICROPY_FLOAT_IMPL=double
 2018-09-20 16:46:19 +10:00
Damien George 0b239d458c lib/libm_dbl/tanh: Make tanh more efficient and handle large numbers. 
Prior to this patch tanh(large number) would return nan due to inf/inf.
 2018-09-04 16:57:46 +10:00
Damien George 045116551e lib: Add libm_dbl, a double-precision math library, from musl-1.1.16. 2017-06-28 15:12:04 +10:00