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[Ibrahima Fall <address@hidden>]

Hi;

Just type the "-" (minus sign or hyphen) four times.

"----" 

best regards

Le ven. 12 févr. 2021 à 14:02, Giovanni Piredda <address@hidden> a écrit :

Waiting that someone else gives a better answer, you can use this function

(lambda ()(stree->tree '(line (point "0par" "0par") (point "1par" "0par"))))

which you can conveniently put in an extern macro and assign to a
"separator" macro:

<assign|separator|<extern|(lambda ()(stree-\<gtr\>tree '(line (point "0par"
"0par") (point "1par" "0par"))))>>

G.


On 12.02.21 14:53, Frank wrote:
> Dear all,
>
> I wonder how to insert an horizontal separator. For example, when I
> prepare a set of problems, I want to put a separator so that the
> exercises in each group are closely related.
>
> Best,
> Frank