def _directivity(self, theta, phi):
        return np.ones_like(theta)
Relu implementation doesn't depend on the value being
dataset/ETHPy150Open python-acoustics/python-acoustics/acoustics/directivity.py/Omni._directivity--crossover with--dataset/ETHPy150Open fchollet/keras/tests/keras/test_activations.py/test_relu