I'm trying to extract some coefficients from a symbolic determinant but it's not working. I tried every option presented on Maple help but couldn't get it to work:
> PL := Matrix([[x-x1, y-y1, z-z1], [x2-x1, y2-y1, z2-z1], [x3-x1, y3-y1, z3-z1]]);
> y1 := 0;
> subs(y2 = -y3, PL);
> Determinant(PL) = 0;
> EqPl := collect(%, [x, y, z], 'distributed');
> coeffs(EqPl, [x, y, z]);
Error, invalid arguments to coeffs
What i did was just get a determinant from a matrix and then tried to extract the coefficients from the x, y and z variables.
Does anyone have any clue of why it's not working?
Thanks alot for the help,