coimage RingMap -- coimage of a map

coimage RingMap -- coimage of a map

Synopsis:

Function: coimage -- coimage of a map

Input:

an instance of class RingMap.

Output:

an instance of class QuotientRing.

Code:

     -- ../../../Macaulay2/m2/ringmap.m2:192
     image RingMap := coimage RingMap := QuotientRing => f -> f.source / kernel f