Accessing \mathcal from Plain TeX

[Carlos Felippa]

I would like to access \mathcal{C} (the curly-C aka script-C
symbol for the complex field) of LaTeX from Plain TeX.
How can I \def it? The calligraphic C: ${\cal C}$ doesnt look right.
Thanks.

[Enrico Gregorio]

Carlos Felippa <car...@colorado.edu> wrote:

They are precisely the same. Unless you use other packages
on LaTeX.

Ciao
Enrico

[Carlos Felippa]

Enrico Gregorio <greg...@math.unipd.it> wrote in message news:<020120042156140791%greg...@math.unipd.it>...

I am looking for a curlier C, with loops at top and
bottom. Sort of like J. Lo.

[Dan Luecking]

On 3 Jan 2004 12:09:12 -0800, car...@colorado.edu (Carlos Felippa)
wrote:

Then you probably use some LaTeX package that substitutes script fonts
in place of the caligraphic fonts. If you can find out what font is
being used, you can use that. Otherwise you can use the rsfs fonts.
Here are the incantations necessary to use it:

%%% begin
% Load the fonts:
\font\tenscr=rsfs10 % The names \tenscr, \sevenscr, \fivescr can
\font\sevenscr=rsfs7 % be any command names, but should be unique and
\font\fivescr=rsfs5 % descriptive.

% Allocate the math family...
\newfam\scrfam % The name \scrfam can be any command, but should
% be unique and descriptive.
% ...and assign the fonts:
\textfont\scrfam=\tenscr
\scriptfont\scrfam=\sevenscr
\scriptscriptfont\scrfam=\fivescr

% I don't know if this is correct or necessary:
\skewchar\scrfam=48

% Define a command to switch to this new math family:
\def\scr{\fam\scrfam}
%%% end

Use it like this: Here is a script C (NOT usually used for the complex
numbers in the experience of this complex analysis expert): ${\scr C}$.

Dan

--
Dan Luecking Department of Mathematical Sciences
University of Arkansas Fayetteville, Arkansas 72701
luecking at uark dot edu

[Michel Bovani]

Le 3/01/04 22:00, dans hjaevv45f9brf2uio...@4ax.com, « Dan
Luecking » <Look-...@uark.edu> a écrit :

> % I don't know if this is correct or necessary:
> \skewchar\scrfam=48

Necessary but not correct :-)

in OMSrsfs.fd

\DeclareFontFamily{OMS}{rsfs}{\skewchar\font'177}

So:

\skewchar\tenscr=127
\skewchar\sevenscr=127
\skewchar\fivescr=127

--
Michel Bovani

[William Gibbons]

> >I am looking for a curlier C, with loops at top and
> >bottom. Sort of like J. Lo.

> Then you probably use some LaTeX package that substitutes script fonts
> in place of the caligraphic fonts. If you can find out what font is
> being used, you can use that

euscript might have what you're looking for. If you put

\usepackage[mathcal]{euscript}

in a LaTeX pre-amble, you'll get a curlier version of the usual
caligraphic alphabet when you use \mathcal.

I don't know how to activate this font from Plain TeX, though.

[Carlos Felippa]

Dan Luecking <Look-...@uark.edu> wrote in message news:<hjaevv45f9brf2uio...@4ax.com>...

Dont have the rsfs fonts to try under TeXtures. Are those available
in CTAN for a Mac?

The technical name is "script majuscules" Springer math and
physics books use those often, e.g in the Handbuch der Physik.