mathjs/docs/reference/functions/map.md

Function map

Create a new matrix or array with the results of the callback function executed on each entry of the matrix/array.

Syntax

math.map(x, callback)

Parameters

Parameter	Type	Description
x	Matrix | Array	The matrix to iterate on.
callback	Function	The callback method is invoked with three parameters: the value of the element, the index of the element, and the matrix being traversed.

Returns

Type	Description
Matrix | array	Transformed map of x

Examples

var math = mathjs();

math.map([1, 2, 3], function(value) {
  return value * value;
});  // returns [1, 4, 9]