rays(A)
i1 : A = matrix "1,1,1,1; 1,2,3,4" o1 = | 1 1 1 1 | | 1 2 3 4 | 2 4 o1 : Matrix ZZ <--- ZZ
i2 : B = syz A o2 = | 1 2 | | -2 -3 | | 1 0 | | 0 1 | 4 2 o2 : Matrix ZZ <--- ZZ
i3 : rays(transpose B) o3 = | 0 1 2 3 | | 3 2 1 0 | 2 4 o3 : Matrix ZZ <--- ZZ
The object rays is a method function.