Dear Matrix MavenJuly 6, 2005
By Philip J. Davis
I have a soft spot for dictionaries, encyclopedias, compendia, formularies, and the like. In my own work, I have found compendia useful in research, in laying out course material, and as a source of problems; occasionally, they have suggested new possibilities. I even keep a few compendia near my bed and rely on them to fall asleep when I lack more sensational material.