List questions from trigonometric-series

Published on 03 Mar 2016 - 22:09

560

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Simplify Product of sines

Published on 09 Mar 2016 - 10:31

48

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Converting certain complex exponentials to trigonometric functions

Published on 10 Mar 2016 - 21:59

52

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How to show: $-\sum_{k=-\infty}^\infty \frac{ik(-1)^k}{1+k^2}e^{-ikx}=2\sum_{k=1}^\infty \frac{k(-1)^{k-1}}{1+k^2}sin(kx)$

Published on 11 Mar 2016 - 20:26

205

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Finite Messy Trigonometric Sum

Published on 12 Mar 2016 - 2:28

103

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Defining trigonometric functions for obtuse angle

Published on 15 Mar 2016 - 11:22

195

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Find $\sum_{k=0}^6cot({\pi\over 21} + {k\pi\over 7})$

Published on 17 Mar 2016 - 4:49

2.4k

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Error of Taylor Series?

Published on 22 Mar 2016 - 3:43

104

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Sum of Squares of Tangents

Published on 24 Mar 2016 - 16:57

722

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Laurent series for $\cot(\pi z)/z^2$

Published on 30 Mar 2016 - 14:45

659

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Uniform convergence of a trigonometric series

Published on 01 Apr 2016 - 18:44

52

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How to find the scaling with N for FWHM and MAX of $F(X) = (1+\cos((2N+1)\pi X)/(1+\cos(\pi X))$?

Published on 10 Apr 2016 - 22:54

67

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How to appraoch solving this series?

Published on 19 Apr 2016 - 23:45

409

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How to evaluate this limit using Taylor expansions?

Published on 21 Apr 2016 - 3:11

126

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How to get from $\sum_{n=0}^N (a_n \cos{nx} + b_n \sin{nx})$ to $\sum_{-N}^{N} c_n e^{inx}$?

Published on 21 Apr 2016 - 23:15

List Question

$\sum_{n=2}^\infty \frac{e^{2\pi in t}}{n \log n}$

Simplify Product of sines

Converting certain complex exponentials to trigonometric functions

How to show: $-\sum_{k=-\infty}^\infty \frac{ik(-1)^k}{1+k^2}e^{-ikx}=2\sum_{k=1}^\infty \frac{k(-1)^{k-1}}{1+k^2}sin(kx)$

Finite Messy Trigonometric Sum

Defining trigonometric functions for obtuse angle

Find $\sum_{k=0}^6cot({\pi\over 21} + {k\pi\over 7})$

Error of Taylor Series?

Sum of Squares of Tangents

Laurent series for $\cot(\pi z)/z^2$

Uniform convergence of a trigonometric series

How to find the scaling with N for FWHM and MAX of $F(X) = (1+\cos((2N+1)\pi X)/(1+\cos(\pi X))$?

How to appraoch solving this series?

How to evaluate this limit using Taylor expansions?

How to get from $\sum_{n=0}^N (a_n \cos{nx} + b_n \sin{nx})$ to $\sum_{-N}^{N} c_n e^{inx}$?

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