Merge pull request #7 from Ferix9288/fix_fast_cos

smira · web-flow · commit b2d9c6d4dc3e · 2019-06-27T16:40:12.000+03:00
Fix FastCos
diff --git a/distance.go b/distance.go
@@ -45,7 +45,7 @@ func FastSine(x float64) float64 {
 // FastCos calculates cosinus from sinus
 func FastCos(x float64) float64 {
 	x += math.Pi / 2.0
-	if x > math.Pi {
+	for x > math.Pi {
 		x -= 2 * math.Pi
 	}
 

Original file line number	Diff line number	Diff line change
`@@ -45,7 +45,7 @@ func FastSine(x float64) float64 {`
`45`	`45`	`// FastCos calculates cosinus from sinus`
`46`	`46`	`func FastCos(x float64) float64 {`
`47`	`47`	`x += math.Pi / 2.0`
`48`		`- if x > math.Pi {`
	`48`	`+ for x > math.Pi {`
`49`	`49`	`x -= 2 * math.Pi`
`50`	`50`	`}`
`51`	`51`