Mathematical Treasure: Bartholomaeus Keckermann's Systema compendiosum totius mathematices

Bartholomaeus Keckermann (ca 1572–1609) was a German writer, Calvinist theologian, and philosopher. In 1617, he published A complete system of mathematics and geometry. This work was republished in 1621 (shown here) and 1661.

The text contained a systematic outline of mathematics:

A formal discussion of geometry begins on page 53.

Angle measurement is explained on page 100.

These images are presented courtesy of the John Carter Brown Library, Brown University. The full volume may be read here.

Index to Mathematical Treasures