Macaulay2
»
Documentation
Packages
»
WeylGroups
::
numberOfPositiveRoots(RootSystem)
next
|
previous
|
forward
|
backward
| up |
index
|
toc
numberOfPositiveRoots(RootSystem) -- the number of positive roots
Synopsis
Function:
numberOfPositiveRoots
Usage:
numberOfPositiveRoots(R)
Inputs:
R
,
an instance of the type
RootSystem
,
Outputs:
an
integer
, the number of positive roots of
R
Description
i1 : numberOfPositiveRoots(rootSystemD(4)) o1 = 12
Ways to use this method:
numberOfPositiveRoots(RootSystem)
-- the number of positive roots