<ul data-eligibleForWebStory="true"><li>Combinatorics deals with counting, arranging, and partitioning objects in mathematics.</li><li>It is a crucial aspect in various fields like computer science, encryption, physics, and operations research.</li><li>The author became interested in combinatorics while researching for an encryption patent in 1998.</li><li>Permutations and combinations are fundamental concepts in combinatorics.</li><li>These concepts help in developing a powerful method for counting.</li></ul>

The Nuts and Bolts of Stars and Bars

Discover more