Help with very very slow determinant calcuation



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?