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 December 29th, 2013, 06:14 AM #1 Newbie   Joined: Dec 2013 Posts: 12 Thanks: 0 summing a finite exponential series Hi, I'm doing an assignment where I have to approximate the area under a curve by splitting it into rectangles. I'm almost there but I need to evaluate the following in order to get the answer: ?e^(-i^2/200) for i = 1 to 10 I've tried writing it out as e^(-1/2) + e(-4/2) + ... + e^(-100/2) but I don't know where to go from there (if that's even helpful at all). Can anyone help? Thanks
 December 29th, 2013, 04:33 PM #2 Global Moderator   Joined: May 2007 Posts: 6,454 Thanks: 567 Re: summing a finite exponential series There is no formula for the sum. Just calculate each term and add them up.
 December 30th, 2013, 05:03 AM #3 Newbie   Joined: Dec 2013 Posts: 12 Thanks: 0 Re: summing a finite exponential series oh, ok thanks

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# sum of finite exponential series

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