Tests whether two arrays are almost equal; that is, any numbers are within a certain epsilon.
var almostEqual =//defaults to float epsilon// true// false//custom epsilon// true
almostEqual(a, b[, epsilon[, relativeTolerance]])
b are arrays (or typed arrays), equal length, and all elements are strictly equal or numbers are almost equal.
epsilon defaults to FLT_EPSILON.
relativeTolerance defaults to
epsilon if not specified.
MIT, see LICENSE.md for details.