def get_cv(m, n, c, type):
    if type == 1:
        return special.pro_cv(m, n, c)
    elif type == -1:
        return special.obl_cv(m, n, c)
def get_cv(m, n, c, type):
    if type == 1:
        return special.pro_cv(m, n, c)
    elif type == -1:
        return special.obl_cv(m, n, c)
def get_obl_norm(m, n, c):
    return get_obl_norm_cv(m, n, c, special.obl_cv(m, n, c))
def get_obl_norm(m, n, c):
    return get_obl_norm_cv(m, n, c, special.obl_cv(m, n, c))