Saul I. Gass, 87, a professor and past chairman of the University of Maryland business school’s department of management science and statistics, died March 17 at his home in Potomac.

The cause was cancer, said his son, Ronald S. Gass.

Dr. Gass joined the U-Md. faculty in 1975 and retired in 2001. He was then a consultant to what is now the U.S. Government Accountability Office, the Congressional Budget Office and the National Institute of Standards and Technology.

Saul Irving Gass was born in Chelsea, Mass. He served in the Army in Europe during and after World War II. He graduated from Boston University, where he also received a master’s degree in mathematics, both in 1949. In 1965 he received a doctorate in engineering science and operations research at the University of California at Berkeley.

He first came to the Washington area in 1952 and held several research, analytical, management and consulting positions with the government and private industry. He received awards from the University of Maryland for his teaching and scholarship.

Survivors include his wife of 66 years, Gertrude Candler “Trudy” Gass of Potomac; two children, Ronald S. Gass of Redding, Conn., and Joyce A. Gass of Santa Monica, Calif.; and a granddaughter.

— Bart Barnes