Hello all,

attached there's a "library" for newlisp to perform mathematical operations with complex numbers.

Such numbers are created with a list with the format : '(re im).

I added and tested all the included functions.

I also created a library for complex matrices determinant. The matrices needs to be written in column-major order.

I borrowed the permutation code from the newlisp web site and I added the function to calculate the parity of permutation.

Please feel free to test it and comment it.

This is my first newlisp program, and I'm sure there're a lot to improve.

Regards