i1 : M = random(ZZ^3, ZZ^5) o1 = | 1 6 8 9 8 | | 9 9 4 7 9 | | 0 6 8 4 9 | 3 5 o1 : Matrix ZZ <--- ZZ |
i2 : R = QQ[x,y,z] o2 = R o2 : PolynomialRing |
i3 : phi = makeRingMaps(M,R) o3 = {map(QQ,R,{1, 9, 0}), map(QQ,R,{6, 9, 6}), map(QQ,R,{8, 4, 8}), ------------------------------------------------------------------------ map(QQ,R,{9, 7, 4}), map(QQ,R,{8, 9, 9})} o3 : List |
i4 : apply (gens(R),r->phi#2 r) o4 = {8, 4, 8} o4 : List |
i5 : phi#2 o5 = map(QQ,R,{8, 4, 8}) o5 : RingMap QQ <--- R |