Subject: Help with very very slow determinant calcuation
From: Richard Fateman
Date: Mon, 08 Aug 2011 15:41:00 -0700
On 8/8/2011 7:50 AM, Nghia Ho wrote:
> My maxima script can be downloaded here
It would be nice to put newlines in your script.
There seems to be at least 39 variables, just looking at the first few
lines of the script.
there are many redundancies in your code. for example, expand() could be
called
once instead of 100 times. and coeff(coeff(E,x,2),y,2) is
coeff(E,x^2*y^2).
Unless there is something more that you know about the determinant,
calculating it
by brute force seems unreasonable. Can you do a 3X3 case?