What is the sum of all the natural numbers? Isn't it just infinity or is it really -1/12? Here we will see 1+2+3+... "will be" -1/12 if you use the Ramanujan summation, which is a way to assign a value to a divergent series.
Check out Bose Integral: https://youtu.be/ctG4YgMs74w
Check out NOT -1/12, https://youtu.be/6FTwMUL69u0
Sum of 1/n^2 by a Gucci Integral: https://youtu.be/5-pXwWNcsbc
Sum of n^2, https://youtu.be/UsSC5v0o2Aw
Ramanujan Summation: https://en.wikipedia.org/wiki/Ramanujan_summation
Ramanujan summation in detail: https://hal.univ-cotedazur.fr/hal-01150208v2/document
The sum of all natural numbers:
by 3b1b: https://youtu.be/sD0NjbwqlYw
by Numberphile: https://youtu.be/w-I6XTVZXww
by Mathologer: https://youtu.be/jcKRGpMiVTw
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