Question

"Aera" of square if "aera" of circle is passage in upper decimal

score 132 · Answer 1 · 2013-08-16 12:07:12

132

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"Aera" of square if "aera" of circle is passage in upper decimal

Published on 16 Aug 2013 - 12:07

score 4.8k · Answer 2 · 2013-08-16 19:11:43

4.8k

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Pseudo code for calculating $\pi$ using an iterating algorithm?

Published on 16 Aug 2013 - 19:11

score 128 · Answer 3 · 2013-08-17 23:33:13

128

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invariance of π

Published on 17 Aug 2013 - 23:33

score 262 · Answer 4 · 2026-03-27 04:34:24

262

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Prove that $\frac{\pi}{\phi^2}<\frac65 $

Published on 27 Mar 2026 - 4:34

score 690 · Answer 5 · 2026-03-28 08:51:20

690

Views

Proof of $\pi$ not being a quadratic irrational number.

Published on 28 Mar 2026 - 8:51

score 2.6k · Answer 6 · 2026-03-26 17:14:23

2.6k

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Proving that $\frac{\pi}{4}$$=1-\frac{\eta(1)}{2}+\frac{\eta(2)}{4}-\frac{\eta(3)}{8}+\cdots$

Published on 26 Mar 2026 - 17:14

score 1k · Answer 7 · 2026-04-01 06:30:23

1k

Views

$\pi$, disjunctive numbers, and finite sequences of given length

Published on 01 Apr 2026 - 6:30

score 2k · Answer 8 · 2013-09-11 01:27:31

2k

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Pi might contain all finite sets, can it also contain infinite sets?

Published on 11 Sep 2013 - 1:27

score 280 · Answer 9 · 2013-09-27 14:57:07

280

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$\frac{\pi}{4}=k\arctan \frac{1}{m}+l\arctan \frac{1}{n}$ has only four solutions?

Published on 27 Sep 2013 - 14:57

score 2.8k · Answer 10 · 2013-09-27 19:26:36

What do I need to know to prove this? $ \frac{2\sqrt{2}}{9801} \sum_{k=0}^\infty \frac{ (4k)! (1103+26390k) }{ (k!)^4 396^{4k} } = \frac1{\pi} $

score 2.4k · Answer 11 · 2026-03-29 11:20:01

2.4k

Views

A strange "pattern" in the continued fraction convergents of pi?

Published on 29 Mar 2026 - 11:20

score 89 · Answer 12 · 2013-09-30 18:14:26

89

Views

An integral which when evaluated leads to a better bound on a familiar constant. What is the bound and the constant?

Published on 30 Sep 2013 - 18:14

score 737 · Answer 13 · 2013-10-02 06:29:13

737

Views

Proving that $\sum_{k=1}^{\infty} \frac{3408 k^2+1974 k-720}{128 k^6+480 k^5+680 k^4+450 k^3+137 k^2+15 k} = \pi$

Published on 02 Oct 2013 - 6:29

score 2.2k · Answer 14 · 2013-10-02 21:37:56

2.2k

Views

Volume of comma-like teardrop shape or a 3d paisley shape

Published on 02 Oct 2013 - 21:37

score 1k · Answer 15 · 2013-10-03 18:53:49

1k

Views

What irrational numbers repeat under a different base?

Published on 03 Oct 2013 - 18:53

List Question

"Aera" of square if "aera" of circle is passage in upper decimal

Pseudo code for calculating $\pi$ using an iterating algorithm?

invariance of π

Prove that $\frac{\pi}{\phi^2}<\frac65 $

Proof of $\pi$ not being a quadratic irrational number.

Proving that $\frac{\pi}{4}$$=1-\frac{\eta(1)}{2}+\frac{\eta(2)}{4}-\frac{\eta(3)}{8}+\cdots$

$\pi$, disjunctive numbers, and finite sequences of given length

Pi might contain all finite sets, can it also contain infinite sets?

$\frac{\pi}{4}=k\arctan \frac{1}{m}+l\arctan \frac{1}{n}$ has only four solutions?

What do I need to know to prove this? $ \frac{2\sqrt{2}}{9801} \sum_{k=0}^\infty \frac{ (4k)! (1103+26390k) }{ (k!)^4 396^{4k} } = \frac1{\pi} $

A strange "pattern" in the continued fraction convergents of pi?

An integral which when evaluated leads to a better bound on a familiar constant. What is the bound and the constant?

Proving that $\sum_{k=1}^{\infty} \frac{3408 k^2+1974 k-720}{128 k^6+480 k^5+680 k^4+450 k^3+137 k^2+15 k} = \pi$

Volume of comma-like teardrop shape or a 3d paisley shape

What irrational numbers repeat under a different base?

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