How 1+2+3+... Can Equal -1/12 in Ramanujan Summation
Mathologer · Explainer · YouTube title: Ramanujan: Making sense of 1+2+3+... = -1/12 and Co.
Why it's here
Recommended as a careful, honest treatment of the -1/12 claim, often preferred over flashier videos.
What it covers
Mathologer examines how identities like 1+2+3+... = -1/12 arise in Ramanujan's work, starting from his 1913 letter to Hardy. The video explains the rules for summing infinite series and why such results are meaningful but not naive sums.