Pivots (Gaussian reduction)

[salvomic]

(06-05-2015 07:03 PM)DrD Wrote:  In another post Han said to "put spaces around the ./ operator."

ok, I'm trying it, but doesn't change...
The principal problem is: why M3, M4, M7 seem don't need division, M2 need recursive division, and M6 only for the first row that after will be treated by pivot()?
If I execute manually pivot() -> finding a pivot -> finding minor (reducing first row and column) at the end I need to decide where divide or not also: but how to tell it to the calculator? I'm stuck only in this point...

Salvo