qspec.wigner_6j  (  j_1 ,  j_2 ,  j_3 ,  j_4 ,  j_5 ,  j_6 ,  as_sympy = False  )[source]

Calculate the Wigner-6j symbol $ \begin{Bmatrix} J_1 & J_2 & J_3 \\ J_4 & J_5 & J_6 \end{Bmatrix}$.

Parameters:

j_1sympy_quant

$J_1$

j_2sympy_quant

$J_2$

j_3sympy_quant

$J_3$

j_4sympy_quant

$J_4$

j_5sympy_quant

$J_5$

j_6sympy_quant

$J_6$

as_sympybool

Whether to return the result as a sympy type.

Returns:

outNone

The wigner-6j symbol.