mathjs/docs/reference/functions/dotMultiply.md

Math.js is an extensive math library for JavaScript and Node.js. It features a flexible expression parser with support for symbolic computation, comes with a large set of built-in functions and constants, and offers an integrated solution to work with dif

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# Function dotMultiply

Multiply two matrices element wise. The function accepts both matrices and
scalar values.


## Syntax

```js
math.dotMultiply(x, y)
```

### Parameters

Parameter | Type | Description
--------- | ---- | -----------
`x` | number &#124; BigNumber &#124; Fraction &#124; Complex &#124; Unit &#124; Array &#124; Matrix | Left hand value
`y` | number &#124; BigNumber &#124; Fraction &#124; Complex &#124; Unit &#124; Array &#124; Matrix | Right hand value

### Returns

Type | Description
---- | -----------
number &#124; BigNumber &#124; Fraction &#124; Complex &#124; Unit &#124; Array &#124; Matrix | Multiplication of `x` and `y`


## Examples

```js
math.dotMultiply(2, 4) // returns 8

a = [[9, 5], [6, 1]]
b = [[3, 2], [5, 2]]

math.dotMultiply(a, b) // returns [[27, 10], [30, 2]]
math.multiply(a, b)    // returns [[52, 28], [23, 14]]
```


## See also

[multiply](multiply.md),
[divide](divide.md),
[dotDivide](dotDivide.md)