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pzccal.sty: calligraphic math alphabet with Zapf Chancery
****************************************************************

:Copyright: © 2008, 2010 Günter Milde
:Licence:   This work may be distributed and/or modified under the
            conditions of the `LaTeX Project Public License`_, either
            version 1.3 of this license or (at your option) any later version.

:Identification:
 ::

  \NeedsTeXFormat{LaTeX2e}
  \ProvidesPackage{pzccal}
  [2011/02/03 v0.1 Zapf Chancery calligraphic math alphabet]
  
`The Comprehensive LaTeX Symbol List`_ by Scott Pakin describes the
use of Zapf Chancery as a mathematical alphabet that contains capital
and small Latin letters as well as digits. This allows full coverage
of the `script` Unicode Mathematical Alphabet with 8-bit LaTeX
engines.

This package sets up the Zapf Chancery font as script (calligraphic)
math alphabet ``\mathpzc``. It provides options to scale the font and to
configure the alias command name. By default, `pzccal` overwrites the
predefined math alphabet command ``\mathcal``. 

Options
=======

Options are defined with the key=value interface provided by
kvoptions_::

  \RequirePackage{kvoptions}
  
cmdname
-------

The name of the math alphabet command alias (default ``\mathcal``). 
An existing command is overwritten without asking. ::

  \DeclareStringOption[mathcal]{cmdname}
  
mathcal, mathscr, mathpzc
-------------------------

For compatibility with eucal_, the ``mathcal`` and ``mathscr`` options
are equivalent to ``cmdname=mathcal`` and ``cmdname=mathscr``. The
option ``mathpzc`` prevents aliasing to a new name::

  \DeclareVoidOption{mathcal}{} % this is the default
  \DeclareVoidOption{mathscr}{\renewcommand{\pzccal@cmdname}{mathscr}}
  \DeclareVoidOption{mathpzc}{\renewcommand{\pzccal@cmdname}{mathpzc}}
  
scaled
------
The Zapf Chancery font can be scaled with the ``scaled`` option. The
default is to enlarge the font to get a matching size without making
it too dark::
  
  \DeclareStringOption[1.125]{scaled}
  
  \ProcessKeyvalOptions*
  
Implementation  
==============

Scaling
-------

Define the font family ``pzcm`` as a scaled variant of ``pzc``::

  \DeclareFontFamily{OT1}{pzcm}{}
  \DeclareFontShape{OT1}{pzcm}{mb}{it}{<-> s * [\pzccal@scaled] pzcmi7t}{}
  
Setup
-----

As suggested in `The Comprehensive LaTeX Symbol List`_:: 

  \DeclareMathAlphabet{\mathpzc}{OT1}{pzcm}{mb}{it}
  
Alias  
-----

Make the new alphabet available under the command specified by the
``cmdname`` option (default: overwrite``\ mathcal``)::

  \@namedef\pzccal@cmdname{\mathpzc}
  
References
~~~~~~~~~~

.. _LaTeX Project Public License: http://www.latex-project.org/lppl.txt
.. _`The Comprehensive LaTeX Symbol List`: 
   http://www.ctan.org/tex-archive/info/symbols/comprehensive/symbols-a4.pdf
.. _eucal: http://mirror.ctan.org/help/Catalogue/entries/eucal.html
.. _kvoptions: http://mirror.ctan.org/help/Catalogue/entries/kvoptions.html

Alternative LaTeX script fonts that might be useful in math:

:Auriocus Kalligraphicus: http://www.tug.dk/FontCatalogue/aurical/
:Calligra: http://www.tug.dk/FontCatalogue/calligra/ (bitmap)
:Jana Skrivana: http://www.tug.dk/FontCatalogue/janaskrivana/
:Vicentino: http://www.tug.dk/FontCatalogue/vicentino/ (bitmap)