show/hide this revision's text 2 Better phrasing (I hope)

Divergent series, anyone?

It was devil's work, just a curiosity, unorthodox idea for Euler and a strange , useless concept for Euler, Abel, Ramanujan..Ramanujan (Abel claiming that it can't and mustn't be used for serious calculations)... but today, we use it for "real" things.

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show/hide this revision's text 1

Divergent series, anyone?

It was devil's work, just a curiosity and a strange, useless concept for Euler, Abel, Ramanujan... but today, we use it for "real" things.