3 ms·
Hey, a use for Wolfram Alpha! [ http://www.wolframalpha.com/input/?i=sum%281%2F%28n+*+pi%29%5E2%2C+n%3D1%2C+inf%29 http://www.wolframalpha.com/input/?i=sum%281%
by ynniv 17y ago
Hey, a use for Wolfram Alpha! [ http://www.wolframalpha.com/input/?i=sum%281%2F%28n+*+pi%29%5E2%2C+n%3D1%2C+inf%29 http://www.wolframalpha.com/input/?i=sum%281%2F%28n+*+pi%29%... ]
- aeroevan 17y agoThis works for me: http://www.wolframalpha.com/input/?i=%28sum+1%2F+%28n+*+pi%29+^2+from+n+%3D+1+to+inf http://www.wolframalpha.com/input/?i=%28sum+1%2F+%28n+*+pi%2...