An undefined command starting with # causes a core dump.

The hbar, lambda bar and radical still do not work well.

The function isreal can be fooled into what is really a number and what is
not.   Try putting a title like ". e + -"

There is a bug in the rounding algorithm for computing up to where to 
put labels on the plots.  A plot having data with x in the range 0..97
could not be kept from going to 100 without choping data.

There are no longer 10^x notation on the labels.

Linewidth should act selectively.

There should be comments in the postscript to permit hand editing.

The date and header should be printed in hardcoded coordinates

