README file for LaTeX package: diffcoeff

Author: Andrew Parsloe (aparsloe@clear.net.nz) 2016-06-27

diffcoeff.sty allows the easy writing of ordinary and partial differential 
coefficients of arbitrary order. For mixed partial derivatives, the overall 
order (algebraic or numeric) is calculated by the package. Optional arguments 
allow the easy specification of a point of evaluation for ordinary 
derivatives, or variables held constant for partial derivatives, and the 
placement of the differentiand (in the numerator or appended). Some tweaking 
of the display is possible through key = value settings. Secondary commands 
provide analogous coefficients constructed from D, \Delta and \delta and a 
command for writing Jacobians. 

diffcoeffx.sty is diffcoeff.sty 'on steroids', extending that package in ways 
that are probably unnecessary but have a certain logical forece. 

The packages require the LaTeX3 bundles, l3kernel and l3packages.

There are six files plus this README: diffcoeff.tex, diffcoeff.pdf (compiled 
from diffcoeff.tex), and diffcoeff.sty; and diffcoeffx.tex, diffcoeffx.pdf 
and diffcoeffx.sty. The tex and pdf files should be placed in texmf/doc/
latex/diff, and the sty files in texmf/tex/latex/diff.