Hi,
I know the command 'echelon(%)' to calculate the echelon form of a matrix.
But what about the form 'small echelon'?
I sho what I mean because I don't know the english translation
for exemple:
The matrix A:
[ -2 -5 8 0 17]
[1 3 -5 1 5]
[3 11 -19 7 1]
[1 7 -13 5 -3]
echelon(A):
[1 3 -5 1 5]
[0 1 -2 2 -7]
[0 0 0 -4 20]
[0 0 0 0 0]
and what I want is something like small_echelon(A):
[1 0 1 0 1]
[0 1 -2 0 3]
[0 0 0 1 -5]
[0 0 0 0 0]
I need this form to calculate Nul(A).
Thank you for your help!
Patrick