Herbert Voss writes:
I uploaded pstricks-add.tgz to the uk mirror.
this new version 2.72
- fixes a bug in psgraph
- has a new macro for drawing a step function for the lower and upper sums of mathematical functions
i have installed the new version and pushed it to the other ctan nodes; i've also updated the catalogue.
thanks for the upload.
archive users may review the package at
http://www.tex.ac.uk/tex-archive/graphics/pstricks/contrib/pstricks-add
or download it from
http://www.tex.ac.uk/tex-archive/graphics/pstricks/contrib/pstricks-add.zip
Robin Fairbairns
For the CTAN team