C.C. MacDuffee | Britannica

C.C. MacDuffee

Contributor

BIOGRAPHY

Professor of Mathematics, University of Wisconsin, Madison, 1943–61. President, Mathematical Association of America, 1945–46. Author of The Theory of Matrices and others.

Primary Contributions (1)

$A page from a first-grade workbook typical of “new math” might state: “Draw connecting lines from triangles in the first set to triangles in the second set. Are the two sets equivalent in number?”$

arithmetic

Arithmetic, branch of mathematics in which numbers, relations among numbers, and observations on numbers are studied and used to solve problems. Arithmetic (a term derived from the Greek word arithmos, “number”) refers generally to the elementary aspects of the theory of numbers, arts of…