Mathematical Treasures - Kepler's Logarithms

Frank J. Swetz and Victor J. Katz

Kepler's Logarithms


This is the title page of Johannes Kepler’s (1571—1630) Chilias Logarithmoria, 1624, logarithmic tables he constructed by geometric procedures. Kepler also gave a proof of why logarithms worked and then used them extensively in his calculations of the Rudolphine astronomical tables.

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