22 May
2013
22 May
'13
7:28 p.m.
Am 22.05.2013 um 19:17 schrieb Sietse Brouwer
NB: I also have some recollection of dummy text composed of hollow rectangles rather than solid black ones, but like you I cannot remember where I saw that. Maybe the document also showed kerns, in pretty colors? I can't remember.
One of these examples can be found in the TeXbook on page 65. IIRC a few presentations regardings math used boxes to show the position of the various symbols and the needed kerns for sub- and superscripts etc. Wolfgang