Page may be out of date
This page has not been updated in the last 5 years. The content on this page may be incorrect. If you have any questions please contact the web team.

Colloquium: “350 Years of Service … and Then Pffft!”

Marshall University Math Colloquium
February 17, 2015

David Cusick
Marshall University

After more than three centuries as a well-known calculation tool, the slide rule was eclipsed by electronic calculators in the 1970s. Based on the “common” (base 10) logarithm, this analog device was state-of-the-art before its popularity collapsed. The elementary slide rule aided the approximation of products, quotients, powers and roots. A variety of other models could handle more sophisticated functions. Some rules are still in regular use even at the present time. Virtual rules exist, and there are some “apps” for that. This talk will just touch the basic theory and a few examples. Logarithm laws are well represented. If time permits, we can see a photo gallery. Everything should be readily accessible to those who are at and above pre-calculus.

Contact Us

Department of Mathematics & Physics

Office: Smith Hall 523

Office Hours: Mon – Fri, 8:00am – 4:30pm


Phone: 304-696-6482

Need Math Help?

Get a Job with Math

Math Honor Society

Student Resources