ZZ * Root -- multiplication of a root by an integer

Synopsis

• Operator: *

• Usage:

  n*r

• Inputs:
  • n, an integer,
  • r, an instance of the type Root,
• Outputs:
  • an instance of the type Weight,

Description

i1 : R=rootSystemA(3)

o1 = RootSystem{...8...}

o1 : RootSystem

i2 : r=simpleRoot(R,1)

o2 = |  2 |
     | -1 |
     |  0 |

       3
o2 : ZZ

i3 : 2*r

o3 = |  4 |
     | -2 |
     |  0 |

       3
o3 : ZZ

i4 : -1*r

o4 = | -2 |
     |  1 |
     |  0 |

       3
o4 : ZZ