ToolPythonIntermediate Ray tracing a black hole with solve_ivp: the shadow of M87* ax.add_patch(plt.Circle((0, 0), 2, color=INK))ax.add_patch(plt.Circle((0, 0), b_c, fill=False, color=MUTED, ls="--", lw=2)) # b_c, as in Step 5
ToolPythonAdvanced The lattice Boltzmann method in NumPy: vortex shedding behind a cylinder ax.add_patch(plt.Circle((0, 0), 0.5, color=MUTED))