# multiply(Tmatrix3_extended,Tvector3_extended):Tvector3_extended

Give product of a three-dimensional extended precision matrix and vector.

## Declaration

Source position: matrix.pp line 579

## Description

This operator allows you to multiply a three-dimensional extended precision matrices with a three dimensional extended precision vector. A new vector is returned which is the product of the matrix and the vector. The product is calculated using the well known matrix-vector multiplication algorithm.