Determinant of 2-by-2 matrices

•  Printer friendly

The determinant of 2x2 matrices is defined as follows:

And the code cannot be simpler,

<script type="text/javascript">

/* parameter m is 2-by-2 matrix */
function det2x2(m) {
  return( ( m[0][0] * m[1][1] ) - ( m[0][1] * m[1][0] ) );
}

</script>

Keywords: determinant, 2-by-2 matrices, matrix, script

Share:   Save to del.icio.us   Digg this!