Orta Doğu Teknik Üniversitesi Genel Seminer
Amateur discourse on the integer points in a disc
Sergey Finashin
METU, Türkiye
The main subject is the generalization of the Leibniz formula $\pi/4=1/1-1/3+1/5-\ldots$ by the Eisenstein formula for the number of integer points in the positive quarter of a disc of radius $r$ centered at the origin: $[r^2/1]-[r^2/3]+[r^2/5]-\ldots$.
