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ZZ _ ExtAlgebra -- get the zero element

Synopsis

Operator: _

Description

Synopsis

Usage:

0_E
Inputs:
- 0, an integer
- E, an instance of the type ExtAlgebra
Outputs:
- an instance of the type ExtElement

i1 : L = lieAlgebra{a,b}/{a a b,b b a}

o1 = L

o1 : LieAlgebra

i2 : E = extAlgebra(4,L)

o2 = E

o2 : ExtAlgebra

i3 : 0_E

o3 = 0

o3 : E

Ways to use this method:

ZZ _ ExtAlgebra -- get the zero element