nullspace(A)
nullspace(A,P)

The nullspace command computes a basis for the right nullspace of a matrix A. If the nullspace consists of only the zero vector then null is returned. An optional second argument P specifies the modulus.

Examples

A = [[1,0,2]];
B = nullspace(A);
B;
	[[0, -2], [1, 0], [0, 1]]
A*B;
	[[0, 0]]