James Drewry Stewart, (March 29, 1941 – December 3, 2014) was a Canadian mathematician, violinist, and professor emeritus of mathematics at McMaster University.
Stewart received his master of science at Stanford University and his doctor of philosophy from the University of Toronto in 1967.
He worked for two years as a postdoctoral fellow at the University of London, where his research focused on harmonic and functional analysis.
Stewart is best known for his series of calculus textbooks used for high school, college, and university level courses.
His books are standard textbooks in universities in many countries.
One of his most well-known textbooks is Calculus: Early Transcendentals (1995).Stewart was also a violinist, and a former member of the Hamilton Philharmonic Orchestra.