Ramanujan’s Summation: 1 + 2 + 3 + 4 + · · · + ∞ = -1/12? Really?

The inconsistency and weirdness of infinity makes it more interesting to play with it. I just love math especially arithmetic and infinite number series. Today we are going to discuss the most popular infinite series, 1 + 2 + 3 + 4 + · · · + ∞ and its sum. Results may give your logic a shock, so be prepared.