positiveRoots -- the set of all positive roots

Ways to use positiveRoots:

• positiveRoots(RootSystem) -- the set of all positive roots
• positiveRoots(RootSystem,Parabolic) -- the set of all positive roots in a parabolic sugroups

For the programmer

The object positiveRoots is a method function.

The source of this document is in WeylGroups.m2:2587:0.