Mathematician:John Perry Ballantine
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Mathematician
American mathematician best known for his work on improvements to classroom calculation techniques.
Inventor of the table slide rule.
Nationality
American (born overseas to missionary parents)
History
- Born: 1896 in Rahuri, India
- Died: 1970
Inventions
Publications
- 1923: Note on the Multiplication of Long Decimals (Amer. Math. Monthly Vol. 30: pp. 68 – 69) www.jstor.org/stable/2298484
- 1938: Essentials of Engineering Mathematics