Clarence Abiathar Waldo
| Clarence A. Waldo | |
|---|---|
| C. A. Waldo | |
| Born | January 21, 1852 Hammond, New York, U.S. | 
| Died | October 1, 1926 (aged 74) | 
| Nationality | American | 
| Education | Wesleyan University (AB, MA) Syracuse University (PhD) | 
| Known for | Advocating against the Indiana Pi Bill | 
| Scientific career | |
| Fields | Mathematics | 
| Institutions | Purdue University Washington University in St. Louis | 
Clarence Abiathar Waldo (January 21, 1852 – October 1, 1926) was an American mathematician, author and educator, most famous, today, for the role he played in the Indiana Pi Bill affair.