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3 unusual facts about Désiré André


Catalan number

The reflection principle has been widely attributed to Désiré André, but his method did not actually use reflections; and the reflection method is a variation due to Aebly and Mirimanoff.

Dmitry Mirimanoff

Therefore, Donald Knuth, who has read Renault's article, will credit Mirimanoff instead of André in future printings of Volume 1 of his monograph The Art of Computer Programming.

Bertrand's ballot problem, not Désiré André to whom it had been long credited.



see also