def fun(self, x, *args):
        self.nfev += 1

        val = sin(x[0] - x[1]) ** 2 * sin(x[0] + x[1]) ** 2
        return sqrt(x[0] ** 2 + x[1] ** 2) / val
dataset/ETHPy150Open scipy/scipy/benchmarks/benchmarks/go_benchmark_functions/go_funcs_K.py/Keane.fun/swapped operands of `/`