Simple function example

exemple.go

package exemple

func MapIntervalFloat64(value, fromLow, fromHigh, toLow, toHigh float64) (ret float64) {
	ret = (value-fromLow)*(toHigh-toLow)/(fromHigh-fromLow) + toLow
	return
}

func SimpleMapIntervalFloat64(value, fromHigh, toHigh float64) (ret float64) {
	ret = value * toHigh / fromHigh
	return
}

func Factorial(value uint) uint {
	if value == 0 {
		return 1
	}
	return value * Factorial(value-1)
}