Age | Commit message (Collapse) | Author | Lines | |
---|---|---|---|---|
2012-04-04 | math: fix x86 asin accuracy | nsz | -2/+3 | |
use (1-x)*(1+x) instead of (1-x*x) in asin.s the later can be inaccurate with upward rounding when x is close to 1 | ||||
2012-03-19 | asm for inverse trig functions | Rich Felker | -0/+23 | |
unlike trig functions, these are easy to do in asm because they do not involve (arbitrary-precision) argument reduction. fpatan automatically takes care of domain issues, and in asin and acos, fsqrt takes care of them for us. |