# The Catalan Numbers and Pi

by John A. Ewell (Northern Illinois University)

This article originally appeared in:
Mathematics Magazine
February, 1992

Subject classification(s): Discrete Mathematics
Applicable Course(s): 3.7 Discrete Math | 4.3 Number Theory

The author gives an elementary justification for the representation of $$\pi$$ involving Catalan numbers.

A pdf copy of the article can be viewed by clicking below. Since the copy is a faithful reproduction of the actual journal pages, the article may not begin at the top of the first page.

To open this file please click here.

These pdf files are furnished by JSTOR.

Classroom Capsules would not be possible without the contribution of JSTOR.

JSTOR provides online access to pdf copies of 512 journals, including all three print journals of the Mathematical Association of America: The American Mathematical Monthly, College Mathematics Journal, and Mathematics Magazine. We are grateful for JSTOR's cooperation in providing the pdf pages that we are using for Classroom Capsules.

Capsule Course Topic(s):
Number Theory | Number Sequences