Timeline for How do I get my equation to have the form $(x-a)^2 + (y-b)^2 + (z-c)^2-d = 0$?
Current License: CC BY-SA 3.0
10 events
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| Oct 6, 2021 at 12:32 | comment | added | Alexei Boulbitch | @murray It happened about a year ago, and I do not remember details now. I think, with passing to Win10 it stopped returning help, and something else also happened that I presently cannot recall. I need to experiment with it to answer you precisely. I will return to you in a few days, if you agree since I am awfully over-occupied now. | |
| Oct 4, 2021 at 21:27 | comment | added | murray | @AlexeiBoulbitch: What exactly do you mean by "stopped working"? It's working for me with Mathematica 12.3 under macOS Big Sur 11.6. As I recall, there a few names in the package, e.g. EulerAngle that are shadowed by names now in the Mathematica kernel and I had to modify Presentations so as to change the names to something like DPxxx instead of xxx. | |
| Oct 3, 2021 at 17:32 | comment | added | Alexei Boulbitch | @murray Dear Murray, on my machine Presentations, stopped working. It either happened with passing to Win.10, or to a previous Mma version two versions ago. I cannot tell exactly. I tried to contact David Park and failed. Evidently, Presentations works for you. Could you please kindly comment on this. | |
| Feb 10, 2020 at 5:48 | comment | added | user69323 |
Where should I get the Presentations` package?
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| S Mar 30, 2015 at 10:12 | history | edited | Jinxed | CC BY-SA 3.0 |
micro typo fixed
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| S Mar 30, 2015 at 10:12 | history | suggested | m0nhawk | CC BY-SA 3.0 |
improved question formatting
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| Mar 30, 2015 at 9:54 | review | Suggested edits | |||
| S Mar 30, 2015 at 10:12 | |||||
| May 22, 2013 at 13:35 | comment | added | murray |
@ThiesHeidecke: Sure, Fold simplifies the code. I was merely trying to point out that a user need not write --perhaps ought not to have to write -- his own code for such a common operation as completing the square.
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| May 22, 2013 at 8:36 | comment | added | Thies Heidecke |
You could express the last line neatly with a fold: Fold[CompleteTheSquare, expr, {x, y, z}]
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| May 21, 2013 at 19:14 | history | answered | murray | CC BY-SA 3.0 |