On 1/29/20 2:31 PM, Arthur Reutenauer wrote: > On Tue, Jan 28, 2020 at 05:43:36PM +0100, Pablo Rodriguez wrote: >> Iβm afraid this is the second time Iβm aware of the existence of \ifdim >> (the first time was when reading previous message from Taco π ). > > Itβs a TeX primitive. From the TeXbook, chapter 20: > > * \ifdim<dimen1><relation><dimen2> (compares two dimensions) > This is like \ifnum, but it compares two <dimen> values. For > example, to test whether the value of \hsize exceeds 100pt, you > can say β\ifdim\hsize>100ptβ. > > The definition of \ifnum, right above it, states: > > * \ifnum<number1><relation><number2> (compares two integers) > The <relation> must be either β<β or β=β or β>β. The two > integer numbers are compared to each other in the usual way, and > the result is true or false accordingly.
Many thanks for your reply, Arthur. The explanation is extremely clear. I think I should try to read the TeXbook (but I need time for this first). Many thanks for your help, Pablo -- http://www.ousia.tk ___________________________________________________________________________________ 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://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : http://contextgarden.net ___________________________________________________________________________________
