Timeline for Is there any use for $\sin(\sin x)$?
Current License: CC BY-SA 4.0
15 events
| when toggle format | what | by | license | comment | |
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| Aug 25, 2021 at 22:44 | comment | added | LSpice | I had no idea about this capacity for abusing MathJax. What wonderful new vistas it opens! | |
| Aug 25, 2021 at 21:44 | comment | added | Steven Stadnicki | It seems very rare that there's much need to iterate formulae rather than 'functions'; the notations $f^{(2)}()$ or (if there's any concern about multiple derivatives) $f^{\circ 2}()$ are common enough that I'm hard-pressed to see the need for a notation like this. | |
| Feb 4, 2021 at 3:05 | history | made wiki | Post Made Community Wiki by Ben Webster♦ | ||
| Feb 2, 2021 at 23:44 | comment | added | JP McCarthy | I find it unusual that this notation is set up to work with $f(x)$ rather than $f$. I use the notations (for a computer science class) for the last few mentioned functions $+_1$, $\times_a$, and $\Box^{-1}\circ+_1$ | |
| Feb 2, 2021 at 23:33 | history | edited | user44143 | CC BY-SA 4.0 |
added mathjax
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| Feb 2, 2021 at 20:47 | comment | added | Fedor Petrov | $\text{И}_{1}^n x=1$. $\mathop{И}_{1}^n x=1$. the first is \text{И}_{1}^n, the second \mathop{И}_{1}^n | |
| Feb 2, 2021 at 17:11 | comment | added | Yaakov Baruch | Would something like $V\!\text{I}_{n=1}^{10}\frac{1}{x+n}$ be defined, given that unlike $\sum$ and $\prod$, this new symbol is not commutative? A quick scroll through the 23 page paper did not answer that. | |
| Feb 2, 2021 at 14:46 | comment | added | Emil Jeřábek |
I see that in Salov’s paper, sub/superscripts are written at the side even in display style. Put \nolimits at the end of the definition of \iter if you want that.
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| Feb 2, 2021 at 14:35 | comment | added | Emil Jeřábek |
Use \mathop to get the correct behaviour. The following definition of \iter seems about right for a 10pt document, but you can adjust the sizes to your liking: \input cyracc.def \font\fourtncyr=wncyr10 scaled \magstep2 \font\twelvcyr=wncyr10 scaled \magstep1 \font\tencyr=wncyr10 \font\sevencyr=wncyr7 \def\iter{\mathop{\mathchoice{\doiter\fourtncyr}{\doiter\twelvcyr}{\doiter\tencyr}{\doiter\sevencyr}}} \def\doiter#1{\vcenter{\hbox{#1\cyracc I}}}. Remove the \vcenter if you prefer the symbol to sit on the text baseline, as in the example image.
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| Feb 2, 2021 at 12:46 | comment | added | Carlo Beenakker | true, but just like $\prod$ is not quite a capital letter pi (the bevavior with sub/superscripts is different, the spacing is different), so the iteral symbol should not simply be the cyrillic letter И. | |
| Feb 2, 2021 at 12:45 | comment | added | Emil Jeřábek |
See §6 in the documentation for the amsfonts package how to get cyrillic letters.
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| Feb 2, 2021 at 12:44 | comment | added | Carlo Beenakker | we should start a petition to add И to the LaTeX code base as an operator primitive like $\prod$. | |
| Feb 2, 2021 at 12:44 | history | edited | Carlo Beenakker | CC BY-SA 4.0 |
added 237 characters in body
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| Feb 2, 2021 at 12:43 | comment | added | Yaakov Baruch | detexify.kirelabs.org/classify.html does not show this symbol. | |
| Feb 2, 2021 at 12:40 | history | answered | Carlo Beenakker | CC BY-SA 4.0 |