simple-squiggle/node_modules/mathjs/docs/reference/functions/matrix.md

Function matrix

Create a Matrix. The function creates a new math.Matrix object from an Array. A Matrix has utility functions to manipulate the data in the matrix, like getting the size and getting or setting values in the matrix. Supported storage formats are 'dense' and 'sparse'.

Syntax

math.matrix()                         // creates an empty matrix using default storage format (dense).
math.matrix(data)                     // creates a matrix with initial data using default storage format (dense).
math.matrix('dense')                  // creates an empty matrix using the given storage format.
math.matrix(data, 'dense')            // creates a matrix with initial data using the given storage format.
math.matrix(data, 'sparse')           // creates a sparse matrix with initial data.
math.matrix(data, 'sparse', 'number') // creates a sparse matrix with initial data, number data type.

Parameters

Parameter	Type	Description
data	Array | Matrix	A multi dimensional array
format	string	The Matrix storage format

Returns

Type	Description
Matrix	The created matrix

Examples

let m = math.matrix([[1, 2], [3, 4]])
m.size()                        // Array [2, 2]
m.resize([3, 2], 5)
m.valueOf()                     // Array [[1, 2], [3, 4], [5, 5]]
m.get([1, 0])                    // number 3

See also

bignumber, boolean, complex, index, number, string, unit, sparse