Mathematicians Of The Day

23rd August



On this day in 1638, René Descartes, in a letter to Mersenne, proposed his folium (x3+y3=2axyx^3 + y^3 = 2axy) as a test case to challenge Fermat's differentiation techniques. To Descartes' embarrassment, Fermat's method worked better than his own.
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The postage stamp of one of today's mathematicians at THIS LINK was issued in 1961.

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Quotation of the day

From Hertha Marks Ayrton
An error that ascribes to a man what was actually the work of a woman has more lives than a cat.