Function: matdet
Section: linear_algebra
C-Name: det0
Prototype: GD0,L,
Help: matdet(x,{flag=0}): determinant of the matrix x using Gauss-Bareiss.
 If (optional) flag is set to 1, use classical gaussian elimination (slightly
 better for integer entries)
Description: 
 (gen, ?0):gen	det($1)
 (gen, 1):gen	det2($1)
 (gen, #small):gen	$"incorrect flag in matdet"
 (gen, small):gen	det0($1, $2)

