Pivotisation of a matrix - I try to change an existing file that works with another scheme

[tubar]

Pivotisation of a matrix - I try to change an existing file that works with another scheme

Hello,

I have a Mathcad file that do the pivotisation of a matrix but I dont like it because is too indirect and obscure.

I want to implement another scheme that is more explicit and easily understanding but does not works by now. I attached my working file that also contains the scheme that i try to implement.

[LucMeekes]

In your Piv(Aug)  function, you let i run through all rows (from 1 to n), then you start k at i+1. That is bound to fail when i=n, because then k=n+1, which is out of range.

Potential remedy:  in the first FOR statement, change:

"for i e 1..n"  =>  "for i e 1..n-1"

Success!
Luc

[tubar]

I found the solution. Thks!

I attached the file.

[terryhendicott]

Hi,

Is this  where you are ultimately heading.

Cheers

Terry

[tubar]

Thank you,

It is also useful that function, but I am interested on Mathcad programming technics so that to use minimally the direct prefabricated functions.