mathjs/docs/reference/functions/index.md

Function index

Create an index. An Index can store ranges having start, step, and end for multiple dimensions. Matrix.get, Matrix.set, and math.subset accept an Index as input.

Usage: var index = math.index(range1, range2, ...);

Where each range can be any of: An array [start, end] An array [start, end, step] A number null, this will create select the whole dimension

The parameters start, end, and step must be integer numbers.

Parameters

Parameter	Type	Description
ranges	...*

Returns

Type	Description
undefined