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authorSzabolcs Nagy <nsz@port70.net>2013-01-07 23:54:13 +0100
committerSzabolcs Nagy <nsz@port70.net>2013-01-07 23:54:13 +0100
commit121e3a38a1d0b324696fc1671029e4b815ea7fa4 (patch)
tree608923bcb097799f051cb509af138d8a49239cc5 /COPYRIGHT
parentd84923d89e4fe46877334cbaa5e4549f2c4cb8a6 (diff)
downloadmusl-121e3a38a1d0b324696fc1671029e4b815ea7fa4.tar.gz
math: erf and erfc cleanup
common part of erf and erfc was put in a separate function which saved some space and the new code is using unsigned arithmetics erfcf had a bug: for some inputs in [7.95,8] the result had more than 60ulp error: in expf(-z*z - 0.5625f) the argument must be exact but not enough lowbits of z were zeroed, -SET_FLOAT_WORD(z, ix&0xfffff000); +SET_FLOAT_WORD(z, ix&0xffffe000); fixed the issue
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