normalize_symmetric

normalize_symmetric(expr, variable)

Normalize a Laurent polynomial symmetrically in a single variable.

The result is centered and made symmetric under variable ↔ 1/variable, then the overall sign is chosen so the leading term is positive.

Parameters:

• expr (Expr) – SymPy expression.

• variable (Symbol) – The variable to symmetrize.

Returns:

Expr – Symmetrically normalized expression.

Return type:

Expr