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| author | Benjamin Shockley <benjaminshockley@hotmail.com> | 2020-08-20 13:48:15 -0500 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-08-20 13:48:15 -0500 |
| commit | 0084f0af24e4e219bc040c52ee723959423de6e2 (patch) | |
| tree | 1aebdb362f08bf6417caa87836e3e4e739afc964 /lib/libm/math.c | |
| parent | 9aebe2f1efc99871fcf283c304e3a8700050d736 (diff) | |
| parent | 4d7b9cde33934a44c4c905a49d2f831339fc8bd2 (diff) | |
Merge pull request #2 from adafruit/master
Master
Diffstat (limited to 'lib/libm/math.c')
| -rw-r--r-- | lib/libm/math.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/libm/math.c b/lib/libm/math.c index 39c6a68a5..0e53563bc 100644 --- a/lib/libm/math.c +++ b/lib/libm/math.c @@ -50,6 +50,9 @@ float copysignf(float x, float y) { static const float _M_LN10 = 2.30258509299404; // 0x40135d8e float log10f(float x) { return logf(x) / (float)_M_LN10; } +#undef _M_LN2 +static const float _M_LN2 = 0.6931472; +float log2f(float x) { return logf(x) / (float)_M_LN2; } float tanhf(float x) { if (isinf(x)) { |