[NTG-context] Second derivative ''

[Hans Hagen]

On 3/4/2020 11:44 PM, Weber, Matthias wrote:
> Dear List,
> 
> \starttext
> \startformula
> \left(f\right)'' = f''
> \stopformula
> \stoptext
> 
> has the second apostrophe set too low. This is in MKIV on ConTeXt live as well as in my slightly older version.
> What is the “right” way to typeset a second derivative?
you have to turn on

\setupmathematics
   [collapsing=3]

but it has the side effect of also collapsing more:

$x'' >= 10$

(which is why the mechanism is currently turned off by default)

i'll think about an option that only does some specific ones only

(btw, i love tex but these primes are a bit painful due to th eorriginal 
approach which has lead mixtures of (1) raised in the font and/or raised 
in the engine, (2) them being superscripts but not really, (3) fonts 
therefore doing it inconsistently, (4) some parsing related to multiple 
scripts, (5) double, tripple, etc primes being real unicode characters 
but spaced singles in traditional tex (which itself then introduces some 
size juggling) ... i could proabbly write a few pages about it)

Hans

-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
        tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-----------------------------------------------------------------