Latex Equation Compiler Code

Unpack the zip file and sort the files into your favourite directories:

1. eqc.exe must go somewhere into your path (e.g. C:\WINDOWS\system32\)
2. eqc.sty, units.tex, substitutions.tex and mathconstants.tex must 
go into the appropriate directories of your LaTeX distribution (e.g.
...\tex\latex\eqc\). Don't forget to run texhash afterwards so that the files will be found
3. HTML documentation is in the docs subdirectory
4. Usage examples are in the examples subdirectory
5. Depending on your TeX distribution, you might also have to install the
siunits and fp packages. The first is mandatory, the second can be disabled
if you comment out the makepspicture macros in eqc.sty.

The search path to eqc.sty is compiled into the eqc binary. To adapt
the path to your local installation, you should add a command

\eqcoptions{path="\path\to\where\you\put\eqc.sty\"}

before the first EQC commands. 

If you compile the docs and examples with EQC on windows, you might have to
change the pathnames of the \input statements to fit your directory
structure.

In a normal document, you should always include the following EQC files:

% in the preamble
\usepackage{eqc}

% soon after \begin{document}
\input  mathconstants.tex
\input  units.tex

These files are essential for EQC to function properly. Only very special
cases would warrant not including these files.

Further help is available on
http://eqc.sourceforge.net/wiki . 
Section 1.2.3 also contains some hints on how to integrate EQC with emacs
auctex mode.