Re: Fraction with a fraction in the denominator

[Hans Hagen <pragma@wxs.nl>]

On 6/4/2013 3:04 PM, Sietse Brouwer wrote:
> Hoi Sander,
>
> Sander wrote:
>> This gives basically three equally long division lines
>
> The fraction line of a nested fractions is in fact shorter than that
> of its parent fraction, but by a very small amout. This seems to be
> the standard behaviour -- I tried the formula in LaTeX, and the
> difference is just as small.
>
> I agree with you that it would be nice if the difference were a bit
> bigger in the case of continued fractions, but I suspect that would be
> hard to automate. Anyway: below is a quick hack for manual adjustment.
>
> (I've simplified your formula somewhat -- the one in your mail threw
> some syntax errors to do with {} nesting, and the square roots made it
> harder to make out the fraction line.)
>
> Cheers,
> Sietse
>
> % Declare a new dimension variable
> \newdimen\padwidth
>
> % Set dimen
> \padwidth=1em
> % Define a command that adds a padwidth-sized kern
> \define[0]\pad{\kern \padwidth}
>
> % Needed for the formula
> \def\VAR#1{\text{VAR}(#1)}
>
> \startformula
>      \frac{
>          \mu_{Z}
>      }{
>          \pad\frac{
>              \VAR{Z}
>          }{
>              N_{\text{segments}}
>          }\pad
>      }
> \stopformula

ok, a new feature for SB:

\definemathfraction
   [wfrac]
   [margin=.25em]

\starttext

\startformula
     \wfrac {
         a
     } {
         \frac {
             b
         } {
             c
         }
     }
\stopformula

\stoptext



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