Random walk

Increasing the order of a numerical scheme is important as soon as non-linearities are contained into an Ordinary Differential Equation (ODE) or a Partial Differential Equation (PDE). In this example, I give the recipe to build an eulerian upwind numerical...

Life of the physicist is like the one of a painter. You have to make your best art as soon as the money flows but most of the time is dedicated to look for money instead of producing your best. And while the money does not flow anymore at the place you're...