goext/lang/mathext/math.go

package mathext

func AvgFloat64(arr []float64) float64 {
	return SumFloat64(arr) / float64(len(arr))
}

func SumFloat64(arr []float64) float64 {
	sum := 0.0
	for _, v := range arr {
		sum += v
	}
	return sum
}