Function e3

python/test/unit/fem/test_function.py:75–86

(x)

        return values

    def e3(x):
        values = np.empty((9, x.shape[1]))
        values[0] = x[0] + x[1] + x[2]
        values[1] = x[0] - x[1] - x[2]
        values[2] = x[0] + x[1] + x[2]
        values[3] = x[0]
        values[4] = x[1]
        values[5] = x[2]
        values[6] = -x[0]
        values[7] = -x[1]
        values[8] = -x[2]
        return values

    u1.interpolate(lambda x: x[0] + x[1] + x[2])
    u2.interpolate(e2)