Physics, Python Programming, Runge Kutta.
approximate then next slope value, from k1 to k2, k2 to k3, and k3 to k4. #This loop also appends that values, starting with the initial values, to the empty arrays that we've initialized earlier. while (x >= xf ): xaxis = np.append(xaxis, x) psi = np.append(psi, r[0]) psiprime =