Re: graph drawing tool of possible interest

On Mon, May 11, 2026 at 05:16 (+0200), Wolfgang Schuster wrote:

> Am 11.05.2026 um 02:14 schrieb Jim via ntg-context:

>> I will admit I was surprised a long time ago when I first saw that $$
>> compiles; I've been using that for so long I don't know where I originally
>> saw that it worked.  (Maybe TikZ does something heavy-handed to make sure
>> you don't try to do display math inside a node.)  I could output the code
>> without it, but I wanted to make the TikZ as easy to (post-)edit by hand as
>> possible.  (Which comes at the cost of having spurious math-on/math-off
>> characters.)

> When you have $$ in a \hbox they are handled as inline math.

> \starttext
> \hbox{$$}% == $ $
> \stoptext

Yet another thing I knew once and forgot.  There it is, second last
paragraph of page 87 of The TeXbook:

        ... two consecutive math shifts ($$) appearing in horizontal mode
        will initiate display math mode, but in restricted horizontal mode
        they simply denote an empty math formula.

Thanks for the reminder.

                                Jim
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