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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–  anon Jan 23 '13 at 3:37
why do you need to understand this formula? –  Mohan Jan 23 '13 at 3:44
so $a_1$sin(2pift)...+$a_2$sin... –  bobdylan Jan 23 '13 at 3:44