Timeline for Name for a Specific Planar Linear Transformation
Current License: CC BY-SA 3.0
8 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Oct 7, 2016 at 13:56 | history | edited | Manfred Weis | CC BY-SA 3.0 |
added restriction on the linear transformations
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| Oct 7, 2016 at 13:37 | comment | added | Manfred Weis | @MichaelRenardy good point; I have edit accordingly. | |
| Oct 7, 2016 at 11:44 | comment | added | Michael Renardy | There is something here I must be misunderstanding. If the have a linear transformation that puts the four points on a circle, cannot you then combine that linear transformation with a dilation that makes the circle as big as you want? | |
| Oct 7, 2016 at 11:23 | history | edited | Manfred Weis | CC BY-SA 3.0 |
improved formulation in response to a comment
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| Oct 7, 2016 at 11:09 | comment | added | Manfred Weis | @BenMcKay I wrote "biggest circle" because I am not sure about the uniqueness; it may depend on the direction, in which one stretches the plane. My concerns about uniqueness are motivated by the fact, that one always can find a stretching along one of the major axes, that makes the points co-cyclic or, equivalently formulated, finds an ellipse in standard orientation through the points. | |
| Oct 7, 2016 at 10:17 | comment | added | Ben McKay | Which circle is the biggest circle? | |
| Oct 7, 2016 at 10:17 | history | edited | Manfred Weis | CC BY-SA 3.0 |
removed a possible ambiguity in the statement of the problem
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| Oct 7, 2016 at 10:09 | history | asked | Manfred Weis | CC BY-SA 3.0 |