next | previous | forward | backward | up | top | index | toc | Macaulay2 website
RationalMaps :: isSameMap

isSameMap -- Checks whether two maps to projective space are really the same



Checks whether two maps, from the same variety, to projective space are really the same. If you pass it two ring maps, it will check whether the source and targets are really the same.

i1 : R=QQ[x,y,z];
i2 : S=QQ[a,b,c];
i3 : L1={y*z,x*z,x*y};
i4 : L2={x*y*z,x^2*z,x^2*y};
i5 : isSameMap(L1,L2)

o5 = true

Ways to use isSameMap :

For the programmer

The object isSameMap is a method function.