MultiplicationMat |
Syntax |
MultiplicationMat(X: RINGELEM, I: IDEAL): MAT MultiplicationMat(X: RINGELEM, I: IDEAL, QB: LIST): MAT |
Description |
Example |
/**/ Use QQ[x,y]; /**/ I := ideal(x*y +y^2 -x -4*y +3, x^2 -y^2 -4*x +2*y +3, y^3 -4*y^2 +5*y -2); /**/ MultiplicationMat(x, I); matrix(QQ, [[0, -3, -5, -3], [0, 4, 6, -2], [0, -1, -1, 1], [1, 1, 1, 4]]) /**/ MultiplicationMat(x, I, [one(CurrentRing), x, y, y^2]); matrix(QQ, [[0, -3, -3, -5], [1, 4, 1, 1], [0, -2, 4, 6], [0, 1, -1, -1]]) |