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Difference between revisions of "Édouard Lucas"
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| − | + | {{Infobox Person | |
| + | | Name=Édouard Lucas | ||
| + | | Sortname=Lucas, Edouard | ||
| + | | Born=1842-04-04 | ||
| + | | Died=1891-10-03 | ||
| + | | Nationality=French | ||
| + | | Wikipedia=Édouard Lucas | ||
| + | }} | ||
| − | Lucas is known for his study of the [[Fibonacci | + | <div style="float:right;clear:both;"> |
| + | {| | ||
| + | | https://upload.wikimedia.org/wikipedia/commons/a/ad/Elucas_1.png | ||
| + | |- | ||
| + | | [https://en.wikipedia.org/wiki/%C3%89douard_Lucas Photo from Wikipedia] | ||
| + | |} | ||
| + | </div> | ||
| + | '''François Édouard Anatole Lucas''' {{BirthDeath|4. April 1842|3. October 1891}} was born in Amiens, France and educated at the Ecole Normale Superieure. He worked as a mathematician at the Paris Observatory, served for a time in the army during the Franco-Prussian War, and then became a professor of mathematics in Paris, first at the Lycée Saint Louis and later at Lycée Charlemagne. | ||
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| + | Lucas is known for his study of the [[Fibonacci number]]s, including a formula for finding the nth term of the sequence. The related [[Lucas sequence]] is named after him. He devised a new method for testing the primality of numbers that did not require finding all of their factors. In 1930, [[Derrick Henry Lehmer]] expanded on this work to create the [[Lucas-Lehmer test]]. In 1876, Lucas proved the primality of <math>2^{127}{-}1</math> ([[M12]]) and this remained the highest [[Mersenne prime]] for almost 75 years, and is still the highest [[prime]] number discovered without the aid of a computer. | ||
Lucas was also interested in recreational mathematics, inventing the Tower of Hanoi puzzle, which is now well known through many variants. His four-volume ''Recreations Mathematiques'' published between 1882 and 1894 has become a classic in its field. | Lucas was also interested in recreational mathematics, inventing the Tower of Hanoi puzzle, which is now well known through many variants. His four-volume ''Recreations Mathematiques'' published between 1882 and 1894 has become a classic in its field. | ||
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==External links== | ==External links== | ||
| − | * | + | *[[Wikipedia:Édouard Lucas|Wikipedia]] |
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Latest revision as of 01:09, 15 January 2024
| Édouard Lucas | |
|---|---|
| Personal data : | |
| Real name : | Édouard Lucas |
| Date of birth : | 1842-04-04 |
| Date of death : | 1891-10-03 |
| Nationality : | French |
| Wikipedia entry : | Édouard Lucas |
François Édouard Anatole Lucas (∗ 4. April 1842; † 3. October 1891) was born in Amiens, France and educated at the Ecole Normale Superieure. He worked as a mathematician at the Paris Observatory, served for a time in the army during the Franco-Prussian War, and then became a professor of mathematics in Paris, first at the Lycée Saint Louis and later at Lycée Charlemagne.
Lucas is known for his study of the Fibonacci numbers, including a formula for finding the nth term of the sequence. The related Lucas sequence is named after him. He devised a new method for testing the primality of numbers that did not require finding all of their factors. In 1930, Derrick Henry Lehmer expanded on this work to create the Lucas-Lehmer test. In 1876, Lucas proved the primality of [math]\displaystyle{ 2^{127}{-}1 }[/math] (M12) and this remained the highest Mersenne prime for almost 75 years, and is still the highest prime number discovered without the aid of a computer.
Lucas was also interested in recreational mathematics, inventing the Tower of Hanoi puzzle, which is now well known through many variants. His four-volume Recreations Mathematiques published between 1882 and 1894 has become a classic in its field.
He died under unusual circumstances. At a dinner for the French Academy for the Advancement of Science, a waiter dropped some plates and a piece of broken china scratched Lucas' cheek. He died a few days later of septicemia (some authorities say erysipelas, a type of bacterial infection).
