func math.satan

5 uses

	math (current package)
		asin.go#L36: 		temp = Pi/2 - satan(temp/x)
		asin.go#L38: 		temp = satan(x / temp)
		atan.go#L76: func satan(x float64) float64 {
		atan.go#L102: 		return satan(x)
		atan.go#L104: 	return -satan(-x)