[NTG-context] How to typeset differential (math)?
Manuel Blanco
manuelbl at ucm.es
Wed Jun 17 14:50:35 CEST 2015
The most common definition is
\define\dif{\mathop{}\!\mfunction{d}}
(I don't know enough of ConTeXt, so may be {\tf d} is better than
\mfunction{d}).
The important part is \mathop{}\! which will add the space on the left
automatically when it's needed (for instance in \frac{\dif x}{\dif y}
no space is added).
2015-06-17 14:00 GMT+02:00 Procházka Lukáš Ing. - Pontex s. r. o.
<LPr at pontex.cz>:
> Hello,
>
> how to typeset differential in math correctly?
>
> Here are my attempts:
>
> ----
> \definemathcommand[dif][nolop]{\mfunction{d}} % Based on
> http://wiki.contextgarden.net/Math/functions
>
> \starttext
> \startformula
> \sin x {\tf d} x
> \stopformula
>
> \startformula
> \sin x \dif x
> \stopformula
> \stoptext
> ----
>
> But:
>
> - case 1: there is no space between "d" and "x" (should be similar to that
> between "sin" and "x")
>
> - case 2: "d" in the formula is shifted down (?!) somehow.
>
> So - ?
>
> Other questions:
>
> I need to typeset some math text.
>
> - Variables should be typeset slanted, which is OK (see "x" in the example).
>
> - Functions (sin, log... "d" in df/dx) should be typeset non-slanted - I
> guess \definemathcommand is supposed for this (or is there a better way?).
>
> - Vector variables should be typeset bold slanted - is there a special
> command for this? (\vec adds arrow above the expression, so it is not
> supposed for this).
>
> Thank you in advance.
>
> Best regards,
>
> Lukas
>
>
> --
> Ing. Lukáš Procházka | mailto:LPr at pontex.cz
> Pontex s. r. o. | mailto:pontex at pontex.cz | http://www.pontex.cz
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