Inventor of the mechanical Schickard Calculator.

Mathematics biography (1)

Notes

Selected Works of Wilhelm Schickard

"New Directions in Humanities Computing," http://www.uni-tuebingen.de/allcach2002?sflag=humc_5 (University of Tübingen, 2002 July, accessed Sept. 7, 2004). Link from Sanket S. Dalal, 2004 Sep 7. This has diagrams and excerpts in Latin from letters of 1623 Sep 20 and 1624 Feb 25 from Schickard to Johannes Kepler about his calculating machine.

1. John J. O'Conner and Edmund F. Robertson, "Wilhelm Schickard," http://turnbull.dcs.st-and.ac.uk/history/Mathematicians/Schickard.html (School of Mathematics and Statistics, University of St. Andrews, Scotland, accessed 2003 Sep 13).