def test_strategy(self):
        self.first_play_test(C)
Solve the linear system 'Ax = b'.
dataset/ETHPy150Open Axelrod-Python/Axelrod/axelrod/tests/unit/test_averagecopier.py/TestNiceAverageCopier.test_strategy--crossover with--dataset/ETHPy150Open sympy/sympy/sympy/matrices/matrices.py/MatrixBase.QRsolve