racah( j1 , j2 , j3 , j4 , j5 , j6 )
The Racah W-symbol in SageMath. Related to wigner_6j by
\[ W( j_1 j_2 j_3 j_4 ; j_5 j_6 ) = (-1)^{j_1+j_2+j_3+j_4} \begin{Bmatrix} j_1 & j_2 & j_5 \\ j_4 & j_3 & j_6 \end{Bmatrix} \]Explicit values:
Related functions: wigner_6j
Function category: miscellaneous functions sagemath-docs