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Macaulay2 website
WeylGroups
::
simpleRoot(RootSystem,ZZ)
simpleRoot(RootSystem,ZZ) -- the n-th simple root
Synopsis
Function:
simpleRoot
Usage:
simpleRoot(R,n)
Inputs:
R
,
an instance of the type
RootSystem
n
,
an
integer
Outputs:
an instance of the type
Root
, the
n
-th simple root of
R
Description
i1 : simpleRoot(rootSystemE(6),2) o1 = | 0 | | 2 | | 0 | | -1 | | 0 | | 0 | o1 : Root