def rne_backward(rbtdef, geom, fw_results, ifunc=None):
    if rbtdef._dh_convention != 'standard':
        rne_backward = rne_park_backward
    elif rbtdef._dh_convention == 'modified':
        rne_backward = rne_khalil_backward
    return rne_backward(rbtdef, geom, fw_results, ifunc)
dataset/ETHPy150Open cdsousa/SymPyBotics/sympybotics/dynamics/rne.py/rne_backward/operator `==` -> `!=`