# - LieElement -- unary negation

## Synopsis

• Operator: -
• Usage:
u = - x
• Inputs:
• x, an instance of the type LieElement, $x$ is of type $L$, where $L$ is of type LieAlgebra
• Outputs:
• u, an instance of the type LieElement, $u$ is of type $L$, the negation of $x$

## Description

The symbol - is used as notation for the Lie negation.

 i1 : L = lieAlgebra{a,b} o1 = L o1 : LieAlgebra i2 : - 2 b b b a o2 = - 2 (b b b a) o2 : L