The 21 Card Trick and its Generalization
Combinatorics
2018-10-22 v3
Abstract
The 21 card trick is well known. It was recently shown in an episode of the popular YouTube channel Numberphile. In that trick, the audience is asked to remember a card, and through a series of steps, the magician is able to find the card. In this article, we look into the mathematics behind the trick, and look at a complete generalization of the trick. We show that this trick can be performed with any number of cards.
Cite
@article{arxiv.1809.04072,
title = {The 21 Card Trick and its Generalization},
author = {Dibyajyoti Deb},
journal= {arXiv preprint arXiv:1809.04072},
year = {2018}
}
Comments
Corrected typos in several pages from \ln to \log