Bachelor of Electrical Engineering, Georgia Institute Technology, 1945; Master of Arts, New York University, 1948; Doctor of Philosophy in Mathematics, New York University, 1954.
Instructor physics & mathematics, Georgia Institute Technology, 1946-1947;
research scientist division electromagnetic research, Institute Math Science, New York University, 1948-1953;
head department mathematics, Sarah Lawrence College, 1951-1953;
lecturer mathematics, Washington Square College, 1957-1959;
associate professor, New York University, 1959-1961;
professor applied mathematics, Courant Institute, 1961-1967;
associate director, Atomic Energy Commission Computer & Appl. Mathematics Center, 1964-1967;
professor applied mathematics, California Institute Technology, since 1967. Visiting professor California Institute Technology, 1965-1966.
Member mathematics division National Research Council, 1969-1972. Member county Conference Board Mathematics Science, 1971-1973. District visiting fellow Christ's College, Cambridge, 1993-1994.
Consultant various industry & government concerns.
Fellow American Association for the Advancement of Science. Member American Mathematics Society, Mathematics Association American, Society Industrial & Applied Mathematics (president 1975-1976), Association Computing Machinery.