Hi Kavian,
It seems to me that these fonts are not free.
Thank you for your help.
Fabrice

Le mer. 16 oct. 2019 à 05:28, Otared Kavian <otared@gmail.com> a écrit :
Hi Fabrice,

I use Lucida OT fonts for all my documents, but since I prefer the script fonts from another font I have the following setups for my font:

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Some Font Definitions
\definefallbackfamily[myfont][math][Asana Math]
[range={uppercasescript,lowercasescript}]

% lucida font
\definefontfamily[myfont][serif][Lucida Bright OT]
\definefontfamily[myfont][math][LucidaBrightMathOT]
\definefontfamily[myfont][sans][LucidaSansOT]
\definefontfamily[myfont][mono][LucidaSansTypewriterOT]

\setupbodyfont[myfont,9pt]

%% End of Font Definitions
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

Then when I use for instance the command $\cal{C}$ the script font from Asana Math is used, instead of from Lucida OT.

Best regards: OK

On 15 Oct 2019, at 21:57, Fabrice Couvreur <fabrice1.couvreur@gmail.com> wrote:

Hello,
Thanks to you two.
"Another solution is to define your own mixture of math fonts and text fonts."
I thought you should not mix several fonts in one text. I know you're a teacher, what are you doing to write your documents ?
Fabrice

Le mar. 15 oct. 2019 à 19:11, Otared Kavian <otared@gmail.com> a écrit :
Hi Fabrice,

Wolfgang gave the right answer, but I wanted to point out that it is better not to use \setupbodyfont in the middle of your document, as you did in the excerpt below: in this case it is better to use 

\switchtobodyfont[xits]

or even better define the character you want before using it as in

\define\CScript{\start\switchtobodyfont[xits] \m{\mathscript{C}} \stop}

and then use that command as in:

La droite \m{(AM)} est {\bf une sécante} à la courbe \CScript en \m{A}.

Another solution is to define your own mixture of math fonts and text fonts.

Best regards: OK


On 15 Oct 2019, at 18:39, Fabrice Couvreur <fabrice1.couvreur@gmail.com> wrote:

 La droite \m{(AM)} est {\bf une sécante} à la courbe {\setupbodyfont[xits]\m{{\mathscript C}}} en \m{A}.

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