def METHOD_NAME(x):
    """
    Symbolic determinant
    :param m: matrix
    :type x: ndarray with symbolic elements
    :return: determinant
    :rtype: ndarray with symbolic elements
    .. runblock:: pycon
        >>> from spatialmath.base.symbolic import *
        >>> from spatialmath.base import rot2
        >>> theta = symbol('theta')
        >>> R = rot2(theta)
        >>> print(R)
        >>> print(det(R))
        >>> simplify(print(det(R)))
    .. note:: Converts to a SymPy ``Matrix`` and then back again.
    """
    return sympy.Matrix(x).METHOD_NAME()