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<HTML>
<HEAD>
<TITLE>Package mathcmd</TITLE>
</HEAD>
<BODY >
<H1 ALIGN="CENTER">
Package <TT>mathcmd</TT><BR>
<SMALL>
This is version 2.0, last revised 1997/12/20; documentation date 1997/12/20
</SMALL>
</H1>
<P ALIGN="CENTER">
<STRONG>
Author: <I>F. Bosisio</I><BR>
<SMALL>
E-mail: <A HREF="MAILTO:bosisio@mate.polimi.it">
<TT>bosisio@mate.polimi.it</TT>
</A><BR>
Web page: <A HREF="http://ftp.mate.polimi.it/~bosisio/LaTeX">
<TT>http://ftp.mate.polimi.it/~bosisio/LaTeX</TT>
</A><BR>
CTAN location: <A HREF="http://www.tex.ac.uk/tex-archive/macros/latex/contrib/supported/bosisio/">
<TT>CTAN:macros/latex/contrib/supported/bosisio/</TT>
</A>
</SMALL>
</STRONG>
</P>
<P ALIGN="LEFT">
<!------------------------------------------------------------------------>
<P>
<H3>Abstract:</H3>
<DIV>
Documentation for the package <TT>mathcmd</TT>.
</DIV>
<HR><BR>
<!------------------------------------------------------------------------>
<H2>Table of contents</H2>
<P>
<UL> <!-- Beginning of list -->
<LI><A HREF="#SECTION01">Introduction</A>
<LI><A HREF="#SECTION02">The options</A>
<LI><A HREF="#SECTION03">Math-mode commands</A>
<UL> <!-- Beginning of sublist -->
<LI><A HREF="#SECTION03a">The <TT>text</TT> command</A>
<LI><A HREF="#SECTION03b">Commands for doing integrals</A>
<LI><A HREF="#SECTION03c">Commands for making sums</A>
<LI><A HREF="#SECTION03d">Derivatives symbols</A>
<LI><A HREF="#SECTION03e">Arrow-limits commands</A>
<LI><A HREF="#SECTION03f">Vector-operators commands</A>
</UL> <!-- End of sublist -->
</UL> <!-- End of list -->
</P>
<HR><BR>
<!------------------------------------------------------------------------>
<P>
<H2>
<A NAME="SECTION01">Introduction</A>
</H2>
This package provides some useful math-commands which are simpler to use and
prettier then their standard LaTeX counterpart.
<P>
In particular <A HREF="#SECTION03b">the ``<TT>\d</TT>'' command</A> is
redefined, so care should be taken, expecially when including this package
in an already existent LaTeX file.
<P>
The original work of ``<TT>\d</TT>'' (i.e. place a dot under its argument)
is now done by the ``<TT>\UnderDot</TT>'' command.
<H2>
<A NAME="SECTION02">The options</A>
</H2>
<P>
At now, six options are available with the <TT>mathcmd</TT> package, which
comes out in matched pairs.
<P>
The ``<TT>ThreeSubscrSum</TT>'' and ``<TT>TwoSubscrSum</TT>'' options control
the placement of subscripts for
<A HREF="#SECTION03c">the ``<TT>\Sum</TT>'' command</A>: the latter
(which is the default) puts the index under the simbol toghether with the
starting point, while the former puts the index on the lower right corner.
<P>
The ``<TT>ProdVettWedge</TT>'' and ``<TT>ProdVettTimes</TT>'' options
select which symbol is to be used for the
<A HREF="#SECTION03f"><EM>vector product</EM></A>: the first one uses
a ``<TT>\wedge</TT>'' (default), whilst the second uses a ``<TT>\times</TT>".
<P>
Finally, the ``<TT>VectOpStr</TT>'' and ``<TT>VectOpSymb</TT>'' options
controls whether the <A HREF="#SECTION03f">vector-operator commands</A>
``<TT>\Grad</TT>'', ``<TT>\Div</TT>'' and ``<TT>\Rot</TT>'' should produce
a roman string (default) or a ``<TT>\nabla</TT>" symbol followed by an
operator, respectively.
<H2>
<A NAME="SECTION03">Math-mode commands</A>
</H2>
<P>
The <TT>mathcmd</TT> package defines a number of math-mode commands.
<H3>
<A NAME="SECTION03a">The <TT>text</TT> command</A>
</H3>
<P>
The ``<TT>\text...</TT>'' command is defined to be equivalent to
``<TT>\mbox</TT>'' (except when the ``<TT>amstext</TT>" package is also used,
since this package already defines this command in a better way).
<P>
It is intended for inserting pieces of text in a formula.
<H3>
<A NAME="SECTION03b">Commands for doing integrals</A>
</H3>
<P>
The ``<TT>\Int</TT>'' (capitalized) differs from the LaTeX command
``<TT>\int</TT>'' in that it is always printed in <TT>displaystyle</TT> and
if it has only a subscript, this is somewhat lowered so that it looks better.
<PRE>
\Int_{...}^{...} ... \d{...}
</PRE>
<P>
The <A HREF="#SECTION01">``<TT>\d...</TT>'' command</A> is for making the
differential symbol at the end of integrals: it simply prints a ``<TT>d</TT>''
followed by its argument and preceded by a little space, which seems prettier.
<H3>
<A NAME="SECTION03c">Commands for making sums</A>
</H3>
<P>
The ``<TT>\Sum{...=...,...}</TT>'' command works differently, depending on
which option between ``<A HREF="#SECTION02"><TT>TwoSubscrSum</TT></A>''
(default) and ``<A HREF="#SECTION02"><TT>ThreeSubscrSum</TT></A>'' has been
specified.
<P>
In the first case, it expands to
``<TT>\displaystyle\sum_{...}={...}^{...}</TT>'', whereas in the second
case the second and third argument are treated in the same way as before
(i.e. as a subscript and superscript, respectively), but the first argument
(the one before the ``='') is placed near the lower-left edge of the
``<TT>\sum</TT>'' symbol and the ``='' is not printed.
<P>
There is also a ``<TT>\SUM...</TT>'' command which is useful when only a
subscript is desired, irrespectively of the option specified: in fact, it
is equivalent to ``<TT>\displaystyle\sum_...</TT>".
<H3>
<A NAME="SECTION03d">Derivatives symbols</A>
</H3>
<P>
The commands ``<TT>\DerTot{...}{...}</TT>'', ``<TT>\DerPar{...}{...}</TT>'' and
``<TT>\DerNorm{...}</TT>'' generate the symbols of total derivative, partial
derivative and normal derivative, respectively.
<P>
In other words, they are the same as:
<PRE>
\displaystyle\frac{d...}{d...}
\displaystyle\frac{\partial ...}{\partial ...}
\displaystyle\frac{\partial ...}{\partial n}
</PRE>
<H3>
<A NAME="SECTION03e">Arrow-limits commands</A>
</H3>
<P>
The command ``<TT>\TendsTo[...,...]</TT>'' generates a right-arrow with
optionally an underscript wich is another smaller right-arrow between the
two comma-separeted arguments inside the square brackets.
<P>
For example, the command ``<TT>f(x) \TendsTo[x,0] 1</TT>'' generates
the following output:
<PRE>
f(x) ----------> 1
x --> 0
</PRE>
<H3>
<A NAME="SECTION03f">Vector-operators commands</A>
</H3>
<P>
Finally, the commands ``<TT>\Grad</TT>'', ``<TT>\Div</TT>'' and
``<TT>\Rot</TT>'' generates the strings ``grad'', ``div'' and ``rot''
in roman type and with small spaces added before and after, if the
``<A HREF="#SECTION02">VectOpStr</A>'' option is in effect (default).
If, instead, the option ``<A HREF="#SECTION02">VectOpSymb</A>'' was specified,
they generate ``<TT>\nabla</TT>", ``<TT>\nabla\cdot</TT>'' and
``<TT>\nabla\ProdVett</TT>'' respectively.
<P>
The command ``<TT>\ProdVett</TT>'' is intended for making the symbol of
vector product, and evaluates to ``<TT>\times</TT>'' with the option
``<A HREF="#SECTION02">ProdVettTimes</A>'' and to ``<TT>\wedge</TT>''
with the (default) option ``<A HREF="#SECTION02">ProdVettWedge</A>''.
<HR><BR>
<!------------------------------------------------------------------------>
<ADDRESS>
<I>Francesco Bosisio</I><BR>
E-mail: <A HREF="MAILTO:bosisio@mate.polimi.it">
<TT>bosisio@mate.polimi.it</TT>
</A><BR>
Web page: <A HREF="http://ftp.mate.polimi.it/~bosisio/LaTeX">
<TT>http://ftp.mate.polimi.it/~bosisio/LaTeX</TT>
</A>
</ADDRESS>
<!------------------------------------------------------------------------>
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