Multiply the given 4x3 matrix <code>mat</code> with <code>this</code>. <p> This method assumes the <code>w</code> component of <code>this</code> to be <code>1.0</code>.
@param mat the matrix to multiply this vector by @return this
See Implementation
Multiply the given 4x3 matrix <code>mat</code> with <code>this</code>. <p> This method assumes the <code>w</code> component of <code>this</code> to be <code>1.0</code>.
@param mat the matrix to multiply this vector by @return this