**Tobias Dantzig** ( /ˈdæntsɪɡ/ ; February 19, 1884 – August 9, 1956) was an American mathematician, the father of George Dantzig, and the author of * Number: The Language of Science (A critical survey written for the cultured non-mathematician) * (1930) and *Aspects of Science* (New York, Macmillan, 1937).

Born in Shavli ^{ [1] }^{ [2] } (then Imperial Russia, now Lithuania) into the family of Shmuel Dantzig (?-1940) and Guta Dimant (1863–1917), he grew up in Lodz and studied mathematics with Henri Poincaré in Paris.^{ [3] } His brother Jacob (1891-1942) was murdered by the Nazis during the Holocaust; he also had a brother Naftali (who lived in Moscow) and sister Emma.

Tobias married a fellow Sorbonne University student, Anja Ourisson, and the couple emigrated to the United States in 1910. He worked for a time as a lumberjack, road worker, and house painter in Oregon, until returning to academia at the encouragement of Reed College mathematician Frank Griffin.^{ [3] } Dantzig received his Ph.D. in mathematics from Indiana University in 1917, while working as a professor there.^{ [3] }^{ [4] } He later taught at Johns Hopkins, Columbia University, and the University of Maryland.

Dantzig died in Los Angeles in 1956. He was the father of George Dantzig, a key figure in the development of linear programming.

*Number: The Language of Science*(1930);^{ [5] }*reprint of 4th edition*. Penguin. 2007. ISBN 9780452288119.*Aspects of Science*(1937)*Henri Poincaré, Critic of Crisis: Reflections on His Universe of Discourse*(1954)*The Bequest of the Greeks*(1955); Dantzig, Tobias (2006).*Dover reprint*. ISBN 9780486453477.

**George Bernard Dantzig** was an American mathematical scientist who made contributions to industrial engineering, operations research, computer science, economics, and statistics.

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* Number: The Language of Science: A Critical Survey Written for the Cultured Non-Mathematician* is a popular mathematics book written by Russian-American mathematician Tobias Dantzig. The original U.S. publication was by Macmillan in 1930. A second edition was published in 1947 in Prague, Czechoslovakia by Melantrich Company. It recounts the history of mathematical ideas, and how they have evolved.

- ↑ Profiles in Operations Research: Pioneers and Innovators
- ↑ T. Dantzig, Historian and Interpreter of Mathematics
- 1 2 3 Albers, Donald J.; Alexanderson, Gerald L.; Reid, Constance, eds. (1990), "George B. Dantzig",
*More Mathematical People*, Harcourt Brace Jovanovich, pp. 60–79. - ↑ Hosch WL
*Tobias Dantzig*, Encyclopædia Britannica Online Academic Edition. - ↑ Miller, G. A. (1931). "Review of
*Number: The Language of Science*by Tobias Dantzig" (PDF).*Bull. Amer. Math. Soc*.**37**: 9. doi: 10.1090/s0002-9904-1931-05073-4 .

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