[Home](./index.md) > [rc-js-util](./rc-js-util.md) > [Mat2](./rc-js-util.mat2.md) > [multiplyMat2](./rc-js-util.mat2.multiplymat2.md) ## Mat2.multiplyMat2() method **Signature:** ```typescript multiplyMat2(_mat: IReadonlyMat2, _result?: Mat2): Mat2; ``` ## Parameters

Parameter	Type	Description
\_mat	[IReadonlyMat2](./rc-js-util.ireadonlymat2.md)<[TTypedArray](./rc-js-util.ttypedarray.md)>
\_result	[Mat2](./rc-js-util.mat2.md)<TResult>	_(Optional)_

**Returns:** [Mat2](./rc-js-util.mat2.md)<TResult>