pyarts3.arts.math.wigner3j
- math.wigner3j(j1: Rational, j2: Rational, j3: Rational, m1: Rational, m2: Rational, m3: Rational) float
Computes the Wigner 3J symbol
\[\begin{split}w_3 = \left(\begin{array}{ccc} j_1&j_2&j_3\\m_1&m_2&m_3\end{array}\right)\end{split}\]Note that an appropriately large call to
make_wigner_ready(fastest, largest, 3 or 6)must have been made ahead of time