[adev_]

> As a French, I don't think I ever calculated pi, we were just handed the formulas and told to use it and I don't think I saw an exercise on how to calculate pi for a few years (or maybe I didn't saw it at school...)

The PI example might be slightly exaggerated but it is not such a far fetch.

For my generation, most advanced Mathematics were taught in France by first a theorem proof and then by an example on how to use it. I do not know if it is still the case nowadays.