How to find Determinant of a matrix I could not understand the concept while googling. can anybody provide help?
what will be the determinant of the following matrix?
$$
\left[\begin{array}{cccc}
1 & 2 & 3 & 4 \\
5 & 6 & 7 & 8 \\
9 & 10 & 11 & 12 \\
13 & 14 & 15 & 16
\end{array} \right]$$
Thanks.... :)

By the way, if you've continued your determinant (in order to draw a real one) in the same vein:
$$
D =
\begin{vmatrix}
1 & 2 & 3 & 4  \\\
5 & 6 & 7 & 8  \\\
9 & 10 & 11 & 12   \\\
13 & 14 & 15 & 16
\end{vmatrix} \ ,
$$
the answer would have been easy:
$$
D =
\begin{vmatrix}
1 & 2 & 3 & 4  \\\
5 & 6 & 7 & 8  \\\
4 & 4 & 4 & 4   \\\
4 & 4 & 4 & 4
\end{vmatrix}
= 0 \ .
$$
:-)
