How do you calculate the determinate of a matrix in matlab without using built in functions?

I need to calculate the determinate of a matrix without using the built in Matlab functions. Can anyone show how they would go about doing this? Thanks!

[KSSV]

It depends on the what dimension of matrix you are dealing with. If 2x2 and 3X3, then you can derive formula and substitute. What matrix you are dealing with actually?

Answer 1

[Walter Roberson]

http://uk.mathworks.com/matlabcentral/answers/38787-what-can-be-programmed-without-any-built-in-functions

Answer 2

[Jos (10584)]

http://www.mathworks.com/matlabcentral/answers/245640-how-to-use-for-loops-to-calculate-the-determinant-of-the-first-n-powers-of-2x2-matrix-a-without-us