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On This Day ...

Important events from the history of math that happened on this day:

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March 6th

1805 Legendre introduced least squares. Gauss had them ten years earlier but had not published, so some controversy ensued.

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Adrien-Marie Legendre
Carl Friedrich Gauss
Least Squares
1866 Ettore Bortolotti, historian of mathematics who revealed the importance of Toricelli's infinitesimal results and vindicated Cataldi's claim to the discovery of continued fractions, was born in Bologna, Italy, on this day.

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Ettore Bortolotti
Torricelli's Trumpet
Continued Fractions
1866 Historian and philosopher of science William Whewell died in Cambridge, England, on this day.

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William Whewell
1939 Ferdinand von Lindemann, who proved in 1882 that pi is transcendental, and hence that the circle cannot be squared, died in Munich, Germany, on this day.

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Ferdinand von Lindemann

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