Timeline for Is this an if-and-only-if definition of affine? [closed]
Current License: CC BY-SA 2.5
17 events
| when toggle format | what | by | license | comment | |
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| Jun 15, 2020 at 7:27 | history | edited | CommunityBot |
Commonmark migration
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| Dec 28, 2019 at 18:03 | history | closed |
David Handelman Alex M. ARG user6976 YCor |
Not suitable for this site | |
| Dec 20, 2019 at 18:10 | review | Close votes | |||
| Dec 28, 2019 at 18:05 | |||||
| Apr 4, 2010 at 13:46 | answer | added | Chris Godsil | timeline score: 0 | |
| Apr 4, 2010 at 2:46 | answer | added | Igor Balla | timeline score: 2 | |
| Apr 4, 2010 at 2:35 | answer | added | Deane Yang | timeline score: 1 | |
| Apr 3, 2010 at 21:33 | answer | added | Sergei Ivanov | timeline score: 2 | |
| Apr 3, 2010 at 17:01 | answer | added | Leah Wrenn Berman | timeline score: 1 | |
| Apr 3, 2010 at 14:54 | comment | added | Harald Hanche-Olsen | That wikipedia article leaves a lot to be desired. For one thing, affine transformations can be defined on spaces in which the notion of rotation is undefined. | |
| Apr 3, 2010 at 4:28 | answer | added | S. Carnahan♦ | timeline score: 1 | |
| Apr 3, 2010 at 4:20 | comment | added | Yemon Choi | Also: see the site FAQ for other possible options mathoverflow.net/faq | |
| Apr 3, 2010 at 4:19 | comment | added | Yemon Choi | Is what you mean by a list the same as what you mean by an expansion? and are you working in n-dimensional space for arbitrary $n$? Moreover, which textbooks have you tried looking in? (I don't have a copy of Artin's Geometric Algebra to hand, but that should have some discussion of this; or maybe Birkhoff & Mac Lane?) | |
| Apr 3, 2010 at 3:55 | comment | added | Learner | I mean it also has to prove that it has taken all situations into account by complete . | |
| Apr 3, 2010 at 3:47 | comment | added | Learner | Is there a complete list for the expansion of affine transformation that takes into account all As and bs? | |
| Apr 3, 2010 at 3:45 | history | edited | Learner | CC BY-SA 2.5 |
added 64 characters in body
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| Apr 3, 2010 at 3:37 | comment | added | Max Flander | every invertible linear transformation in 2D is a combination of a shear a rotation and a scaling, however there are other non-invertible linear transformations, for example projection onto one of the axes | |
| Apr 3, 2010 at 3:22 | history | asked | Learner | CC BY-SA 2.5 |