def METHOD_NAME(size):
    """Make a 3D dataset"""
    coords = numpy.linspace(-10, 10, size)
    z = coords.reshape(-1, 1, 1)
    y = coords.reshape(1, -1, 1)
    x = coords.reshape(1, 1, -1)
    return numpy.sin(x * y * z) / (x * y * z)