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. <l...@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:l...@pontex.cz > Pontex s. r. o. | mailto:pon...@pontex.cz | http://www.pontex.cz > Bezová 1658 > 147 14 Praha 4 > > Tel: +420 241 096 751 > Fax: +420 244 461 038 > ___________________________________________________________________________________ > If your question is of interest to others as well, please add an entry to > the Wiki! > > maillist : ntg-context@ntg.nl / > http://www.ntg.nl/mailman/listinfo/ntg-context > webpage : http://www.pragma-ade.nl / http://tex.aanhet.net > archive : http://foundry.supelec.fr/projects/contextrev/ > wiki : http://contextgarden.net > ___________________________________________________________________________________ ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________