ToolPythonIntermediate Poisson's equation with scipy.sparse: two plates in a grounded box Ex, Ey = np.gradient(-phi, h, h)
ToolPythonAdvanced The lattice Boltzmann method in NumPy: vortex shedding behind a cylinder omega = (np.gradient(uy, axis=1) - np.gradient(ux, axis=0)) * D / U