i1 : R=rootSystemE(8) o1 = RootSystem{...8...} o1 : RootSystem |
i2 : r1=simpleRoot(R,1) o2 = | 2 | | 0 | | -1 | | 0 | | 0 | | 0 | | 0 | | 0 | o2 : Root |
i3 : r2=simpleRoot(R,2) o3 = | 0 | | 2 | | 0 | | -1 | | 0 | | 0 | | 0 | | 0 | o3 : Root |
i4 : rootCoefficients(R,r1+r2) o4 = | 1 | | 1 | | 0 | | 0 | | 0 | | 0 | | 0 | | 0 | 8 o4 : QQ |