“In 1620 Jobst Bürgi published his Progress Tabulen, a work conceived some years earlier. ...[H]e was influenced by Simon Jacob's work. The tables were printed at Prague and are simply lists of antilogarithms with base 1.0001. The logarithm is printed in red in the top line and the left-hand column, and the antilogarithms are in black, and hence Bürgi calls the logarithm Die Rothe Zahl [The Red Number]. The first part of his table is as follows:”