math: Improved accuracy for Sin and Cos.
Fixes #1564.
R=rsc, dchest
CC=golang-dev
https://golang.org/cl/5320056
diff --git a/src/pkg/math/all_test.go b/src/pkg/math/all_test.go
index 94ddea2..b540b17 100644
--- a/src/pkg/math/all_test.go
+++ b/src/pkg/math/all_test.go
@@ -1709,7 +1709,7 @@
func TestCos(t *testing.T) {
for i := 0; i < len(vf); i++ {
- if f := Cos(vf[i]); !close(cos[i], f) {
+ if f := Cos(vf[i]); !veryclose(cos[i], f) {
t.Errorf("Cos(%g) = %g, want %g", vf[i], f, cos[i])
}
}
@@ -2192,7 +2192,7 @@
}
func TestSin(t *testing.T) {
for i := 0; i < len(vf); i++ {
- if f := Sin(vf[i]); !close(sin[i], f) {
+ if f := Sin(vf[i]); !veryclose(sin[i], f) {
t.Errorf("Sin(%g) = %g, want %g", vf[i], f, sin[i])
}
}
@@ -2205,7 +2205,7 @@
func TestSincos(t *testing.T) {
for i := 0; i < len(vf); i++ {
- if s, c := Sincos(vf[i]); !close(sin[i], s) || !close(cos[i], c) {
+ if s, c := Sincos(vf[i]); !veryclose(sin[i], s) || !veryclose(cos[i], c) {
t.Errorf("Sincos(%g) = %g, %g want %g, %g", vf[i], s, c, sin[i], cos[i])
}
}
