next | previous | forward | backward | up | top | index | toc | Macaulay2 website

Macaulay2Doc :: pdim

pdim -- calculate the projective dimension

Synopsis

Usage:

pdim M

Caveat

For now, the method is to measure the length of a projective resolution.

Ways to use `pdim` :

"pdim(BettiTally)" -- see BettiTally -- the class of all Betti tallies
pdim(CoherentSheaf) -- calculate the projective dimension
pdim(Module) -- calculate the projective dimension of a module

For the programmer

The object pdim is a method function.