diff options
Diffstat (limited to 'src/lib/math/exp.go')
| -rw-r--r-- | src/lib/math/exp.go | 21 |
1 files changed, 8 insertions, 13 deletions
diff --git a/src/lib/math/exp.go b/src/lib/math/exp.go index 243460b2b..9bc26d2b6 100644 --- a/src/lib/math/exp.go +++ b/src/lib/math/exp.go @@ -4,7 +4,7 @@ package math -import math "math" +import "math" /* * exp returns the exponential func of its @@ -26,12 +26,7 @@ const maxf = 10000; ) -export func -exp(arg float64) float64 -{ - var x, fract, temp1, temp2, xsq float64; - var ent int; - +export func Exp(arg float64) float64 { if arg == 0. { return 1; } @@ -42,11 +37,11 @@ exp(arg float64) float64 return sys.Inf(1) } - x = arg*log2e; - ent = int(floor(x)); - fract = (x-float64(ent)) - 0.5; - xsq = fract*fract; - temp1 = ((p2*xsq+p1)*xsq+p0)*fract; - temp2 = ((xsq+q2)*xsq+q1)*xsq + q0; + x := arg*log2e; + ent := int(Floor(x)); + fract := (x-float64(ent)) - 0.5; + xsq := fract*fract; + temp1 := ((p2*xsq+p1)*xsq+p0)*fract; + temp2 := ((xsq+q2)*xsq+q1)*xsq + q0; return sys.ldexp(sqrt2*(temp2+temp1)/(temp2-temp1), ent); } |