Tuesday, January 2, 2018

Free Online PDF Version

Happy New Year!  My "author's draft" final manuscript, with corrections of all errata found in 2017, is now freely available as a PDF, from my web site. Of course, I'd still want you to buy the hardcover, too, if you like it.


  1. When” questions will be about items that we seldom see any more. And this week’s question comes from my high school math classes. What was the name for a mechanical instrument used to compute mathematical problems that looked similar to a ten-inch ruler and consisted of three linear strips of which the middle strip moved back and forth? Email your answer to www.mcseniorcenter@gmail.com, leave a message at 541-296-4788 or mail it with a TI-30 scientific calculator.click here

    1. Is this a setup? Does questioner know that I'm also a slide rule collector, and that I have about 600 of them? Some of mine were even featured in Discover Magazine http://discovermagazine.com/2003/aug/featslide