List questions from closed-form

Published on 07 Jan 2021 - 16:36

222

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Closed form of $x_{n+1}=x_n-1/x_n$ with $x \neq 0,1$

Published on 08 Jan 2021 - 9:12

1.4k

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Difference between Ornstein-Uhlenbeck, Vasicek and Geometric Mean Reversion

Published on 30 Mar 2026 - 13:37

35

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Finding the closed form for a double integral expression?

Published on 10 Apr 2026 - 21:49

86

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Bands in ratios of consecutive prime numbers

Published on 10 Jan 2021 - 21:55

60

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Closed form formula for summation where bounds are variables

Published on 15 Jan 2021 - 8:10

104

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A new sum that equals $-\frac12 \ln (\frac{\pi}{2})$

Published on 15 Jan 2021 - 14:22

283

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Closed form for Sum of Tangents with Angles in Arithmetic Progression

Published on 09 Apr 2026 - 22:57

73

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Closed form for $\sum_{k=0}^{n}\left(-1\right)^{k}F_{k}^{2}$

Published on 19 Jan 2021 - 17:05

149

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Closed formula for sum of exponentials

Published on 10 Apr 2026 - 13:42

511

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Closed form of $\cos(\frac{\pi}{7})$

Published on 11 Apr 2026 - 2:07

377

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Equations for Mandelbrot bifurcation diagram

Published on 27 Mar 2026 - 2:34

65

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Given a board of size $1 \times n$,in how many this board can be colored with the colors white,yellow,blue assuming the number of blue cells is even

Published on 24 Jan 2021 - 15:26

121

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Is there an "addition theorem" of logarithm?

Published on 08 Apr 2026 - 22:32

100

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Is there a closed expression for this one?

Published on 10 Apr 2026 - 19:12

List Question

Find a closed form for the recurrence relation: $a_{n+2}-a_n=\sin\frac{n \pi }{2} \;\;\;a_0=a_1=1$

Closed form of $x_{n+1}=x_n-1/x_n$ with $x \neq 0,1$

Difference between Ornstein-Uhlenbeck, Vasicek and Geometric Mean Reversion

Finding the closed form for a double integral expression?

Bands in ratios of consecutive prime numbers

Closed form formula for summation where bounds are variables

A new sum that equals $-\frac12 \ln (\frac{\pi}{2})$

Closed form for Sum of Tangents with Angles in Arithmetic Progression

Closed form for $\sum_{k=0}^{n}\left(-1\right)^{k}F_{k}^{2}$

Closed formula for sum of exponentials

Closed form of $\cos(\frac{\pi}{7})$

Equations for Mandelbrot bifurcation diagram

Given a board of size $1 \times n$,in how many this board can be colored with the colors white,yellow,blue assuming the number of blue cells is even

Is there an "addition theorem" of logarithm?

Is there a closed expression for this one?

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