Forum: Languages -- Ancient & Modern, Human & Machine
2022-02-21, 09:31
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2021-12-07, 08:40
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Forum: Miscellaneous Math
2021-12-07, 08:24
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Forum: Miscellaneous Math
2021-12-06, 23:05
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Replies: 52
Views: 3,979
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Forum: Homework Help
2021-11-20, 11:42
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Forum: Math
2021-11-16, 09:17
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Forum: Languages -- Ancient & Modern, Human & Machine
2021-11-09, 14:21
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Forum: Lounge
2021-11-08, 21:22
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Forum: Probability & Probabilistic Number Theory
2021-11-04, 23:11
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Views: 6,940
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Forum: Astronomy
2021-10-31, 18:27
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Forum: Puzzles
2021-10-29, 21:06
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Replies: 4
Views: 1,140
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Forum: Languages -- Ancient & Modern, Human & Machine
2021-10-24, 08:05
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Replies: 26
Views: 13,592
Certainly an interesting link!
If you have...
Certainly an interesting link!
If you have university access to online journals, the Daniel Levin article is also worth reading:
https://www.jstor.org/stable/10.5325/steinbeckreview.12.2.0190
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Forum: Number Theory Discussion Group
2021-10-24, 07:45
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Replies: 4
Views: 1,675
Over any commutative ring R, the 2x2 matrices...
Over any commutative ring R, the 2x2 matrices with determinant 1 form a subgroup \(SL_2(R)\)
of the unit group of the ring of all 2x2 matrices.
The Pauli matrices have determinant -1, however.
...
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Forum: Software
2021-10-23, 07:25
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Forum: Lounge
2021-10-22, 11:20
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Forum: Lounge
2021-10-22, 07:33
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Replies: 1,925
Views: 216,892
Bernard Haitink...
Bernard Haitink (https://www.bbc.com/news/entertainment-arts-59002746),the world-famous Dutch conductor.
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Forum: Lounge
2021-10-21, 16:34
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Forum: Science & Technology
2021-10-20, 08:41
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Forum: Miscellaneous Math
2021-10-18, 14:23
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Views: 2,166
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Forum: Miscellaneous Math
2021-10-18, 13:53
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Replies: 26
Views: 2,166
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Forum: MattcAnderson
2021-10-18, 09:55
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Replies: 24
Views: 1,980
The mathematical background is that you can...
The mathematical background is that you can construct the regular polygon with n sides using ruler and compass
if and only if ϕ(n) is a power of 2 (where ϕ is Euler's function).
And that is true...
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Forum: Lounge
2021-10-18, 07:36
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Forum: Languages -- Ancient & Modern, Human & Machine
2021-10-14, 22:09
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Replies: 26
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Forum: Soap Box
2021-10-14, 19:46
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Forum: Homework Help
2021-10-14, 08:37
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Replies: 14
Views: 2,156
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