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View Full Version : Sum of cos(wt), t = 1 to inf


selenakf
Dec 6, 2010, 03:15 PM

ebaines
Dec 7, 2010, 06:57 AM
This is impossible to answer, as it depends on the value of w, and in fact there is no definite answer for certain values of w. If w = 0 or 2\pi or 4\pi etc. the series adds to +\infty. If it's anything else the series does not converge, although it is bounded.

ebaines
Dec 7, 2010, 12:34 PM
selanakf: are you sure you wrote the correct expression:

sum of cos(wt) for t = 1 to infinity?

Please explain how this is equal to 0.