Sure you can do.
See
parameter and
4.10 matrix declariationse.g.:
Code:
ring Rt = (0,s,t),(x,y),lp; // s and t are transcendal parameters
// define a 2x3 matrix with polynomial entries in x and y
// having rational coefficients in Q(s,t)
matrix m[2][3] = 2/t*x+1,1, xy, s/(t2-1),s/t*y,0;
m;
m[2,3] = -1; // new assignment
print(m);
Sure you can do.
See [b]parameter[/b] and [b]4.10 matrix declariations[/b]
e.g.:
[code]
ring Rt = (0,s,t),(x,y),lp; // s and t are transcendal parameters
// define a 2x3 matrix with polynomial entries in x and y
// having rational coefficients in Q(s,t)
matrix m[2][3] = 2/t*x+1,1, xy, s/(t2-1),s/t*y,0;
m;
m[2,3] = -1; // new assignment
print(m);
[/code]