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Macaulay2Doc :: matrix(RingMap)

matrix(RingMap) -- the matrix associated to a ring map

Synopsis

Description

i1 : R = QQ[x,y]

o1 = R

o1 : PolynomialRing
i2 : S = QQ[s,t,u]

o2 = S

o2 : PolynomialRing
i3 : f = map(R,S,{x^2,x*y,y^2})

                  2        2
o3 = map (R, S, {x , x*y, y })

o3 : RingMap R <--- S
i4 : matrix f

o4 = | x2 xy y2 |

             1       3
o4 : Matrix R  <--- R