Why the Strangest Sums in Math Are Actually Useful!

Head to https://squarespace.com/drsean to save 10% off your first purchase of a website or domain using code DRSEAN What is the point of strange sums like 1+2+3+...=-1/12 or 1-1+1-1+...=1/2? These series diverge in the usual sense that we study in Calculus and use throughout most mathematics. But these alternative summation methods actually have physical meaning! Let's explore these weird sums and see why they are actually useful! This video is sponsored by Squarespace. 00:00 Introduction 00:31 1-1+1-...=1/2 02:22 Fourier Problem 04:19 Sponsor Message 05:13 1+2+3+... = -1/12