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I'm a programmer with a poor knowledge of math. Could anyone tell me how to read the infinity above the sigma, and the n=1 below the sigma?

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why do you need to understand this formula? – Mohan Jan 23 '13 at 3:44
up vote 1 down vote accepted

Its a summation notation,it means the addition of all the terms starting from n = 1 to n= infinity

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so $a_1$sin(2pift)...+$a_2$sin... – bobdylan Jan 23 '13 at 3:44

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