Today’s problem is about the Cartesian leaf, named after the great mathematician and philosopher René Descartes. In 1638, Descartes challenged Pierre de Fermat (yes, the one with the famous theorem) …

Last time, we played with the Laplace transform and its inverse in Python. Today, we’ll use that knowledge to solve differential equations.

Suppose we have the differential equation

for the …

Throughout my student days, I tried my best to avoid using the Laplace transform. What a pity, as it’s such a powerful tool! The reason why I disliked the Laplace …

Suppose we have function 𝑓 given on an equidistant grid

and we want to compute the derivative of that function on the same grid. Last week, I have written some …

Wow, this is my 100th story! As a topic, I have chosen something about one of my favorite mathematicians… or should I say, physicists? I’m talking about Joseph-Louis Lagrange.

It’s …