mathjs/docs/reference/functions/map.md

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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 #

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

See also #

filter, forEach, sort