Mary Clem

Mary Clem (1905 – 1979) was an American mathematician and human computer. She was a staff member at Iowa State University, recognized for inventing the “zero check” technique for detecting errors.

Mary Clem

Mary Clem (1905 – 1979) was an American mathematician and human computer. She was a staff member at Iowa State University, recognized for inventing the “zero check” technique for detecting errors.