StopBeforeComputation -- an optional argument

Functions with optional argument named StopBeforeComputation:

• gb(...,StopBeforeComputation=>...) -- see gb -- compute a Gröbner basis
• pushForward(...,StopBeforeComputation=>...) -- see pushForward(RingMap,Module) -- compute the pushforward of a module along a ring map
• syz(...,StopBeforeComputation=>...) -- see syz(Matrix) -- compute the syzygy matrix