cholesky takes as argument a square symetric
positive definite matrix M of size n.
cholesky returns a symbolic or numeric matrix P. P is a
lower triangular matrix such that :
Input :
Output :
Input :
Output :
Input :
Output :
Warning If the matrix argument A is not a symetric matrix,
cholesky does not return an error, instead cholesky will
use the symetric matrix B of the the quadratic form q
corresponding to the (non symetric) bilinear form of matrix A.
Input :
or :
Output :