3 * Gets normalized ratio of value inside range.
5 function norm(val, min, max){
6 if (val < min || val > max) {
7 throw new RangeError('value (' + val + ') must be between ' + min + ' and ' + max);
10 return val === max ? 1 : (val - min) / (max - min);
12 module.exports = norm;