(cls, j, m, mp, beta)
return WignerD(j, m, mp, 0, beta, 0)
Wigner small-d function.

        Returns an instance of the WignerD class corresponding to the Wigner-D
        function specified by the parameters with the alpha and gamma angles
        given as 0.

        Parameters
        ===========

        j : Number
            Total angular momentum
        m : Number
            Eigenvalue of angular momentum along axis after rotation
        mp : Number
            Eigenvalue of angular momentum along rotated axis
        beta : Number, Symbol
            Second Euler angle of rotation

        Examples
        ========

        Return the Wigner-D matrix element for a defined rotation, both
        numerical and symbolic:

            >>> from sympy.physics.quantum.spin import Rotation
            >>> from sympy import pi, symbols
            >>> beta = symbols('beta')
            >>> Rotation.d(1, 1, 0, pi/2)
            WignerD(1, 1, 0, 0, pi/2, 0)

        See Also
        ========

        WignerD: Symbolic Wigner-D function
Wigner small-d function.
Wigner small - d function .
def d(cls, j, m, mp, beta):
        """Wigner small-d function.

        Returns an instance of the WignerD class corresponding to the Wigner-D
        function specified by the parameters with the alpha and gamma angles
        given as 0.

        Parameters
        ===========

        j : Number
            Total angular momentum
        m : Number
            Eigenvalue of angular momentum along axis after rotation
        mp : Number
            Eigenvalue of angular momentum along rotated axis
        beta : Number, Symbol
            Second Euler angle of rotation

        Examples
        ========

        Return the Wigner-D matrix element for a defined rotation, both
        numerical and symbolic:

            >>> from sympy.physics.quantum.spin import Rotation
            >>> from sympy import pi, symbols
            >>> beta = symbols('beta')
            >>> Rotation.d(1, 1, 0, pi/2)
            WignerD(1, 1, 0, 0, pi/2, 0)

        See Also
        ========

        WignerD: Symbolic Wigner-D function

        """
        return WignerD(j, m, mp, 0, beta, 0)
def d ( cls , j , m , mp , beta ) : return WignerD ( j , m , mp , 0 , beta , 0 )