Timeline for A number characterizing the deviation of a triangle from the regular triangle
Current License: CC BY-SA 4.0
8 events
| when toggle format | what | by | license | comment | |
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| Apr 9, 2021 at 5:01 | comment | added | bathalf15320 | Yes, the use of "in my book" was idiomatic--I stupidly didn't realise that in this context a literal interpretation would have been quite reasonable. Since the equation I gave is just a rearrangement of Heron, an explicit reference isn't required. Glad to have been of assistance. | |
| Apr 9, 2021 at 4:39 | comment | added | Taras Banakh | @bathhalf15320 Thank you very much for your answer. It was very helpful. In fact, my formulas involved $q$ in the subformula $\sqrt{3−6q}$ and now I understand what this subformula actually means: it is the normalized area of the triangle! Great! I would like to write acknowledgement to your help. Should I write your nick bathhalf15320 or some real name will be better? Thank you. | |
| Apr 9, 2021 at 4:35 | comment | added | Taras Banakh | @asahay Ups! But at least this paper about Heron formula maa.org/sites/default/files/images/upload_library/22/Ford/… is quite real. I then rewrite what I wanted to say to user bathhalf5320. | |
| Apr 8, 2021 at 22:48 | comment | added | Anurag Sahay | I believe the book mentioned in the answer is idiomatic. See, for example dictionary.cambridge.org/us/dictionary/english/in-my-book | |
| Apr 8, 2021 at 21:43 | vote | accept | Taras Banakh | ||
| Apr 8, 2021 at 19:43 | comment | added | მამუკა ჯიბლაძე | @darijgrinberg This should be an (perhaps the) answer, I think. | |
| Apr 8, 2021 at 18:34 | comment | added | darij grinberg | Note that $\dfrac{4A}{a^2+b^2+c^2}$ is the tangent of the Brocard angle $\omega$. Thus, $q = \left(1-\tan^2\omega\right)/2$. | |
| Apr 8, 2021 at 18:19 | history | answered | bathalf15320 | CC BY-SA 4.0 |