R.M. Robinson Punch Card Stencils
date: label: date made
content: 1940
notes: label: Description
content: This red, cloth-covered paper box holds a set of 272 punched cards as well as two punch cards which have not been punched. On the top row of each card is printed, the exclusion modulus, the quadratic character of m (R for residual or N for nonresidual) and the value of a/m. A small gray pamphlet fits in the box with the stencils. The cards were published by the University of California Press.
label: Description
content: Raphael Robinson used these punched cards for his research in number theory before World War II. His interest in using devices to solve problems in number theory continued after the war. In 1952, he programmed the SWAC omputer at UCLA's Institute for numberical Analysis to calculate Mersenne primes, finding the first Mersenne primes discovered useing a computer. Several of his later papers also made use of computers.
label: Description
content: Reference:
label: Description
content: "Recent Mathematical Tables," <I>Mathematical Tables and Other Aids to Computation</I>, vol. 2 #15, July, 1946, p. 124-125. This is a review by D. H. Lehmer. It is numbered 305 [F, Z].
label: Location
content: Currently not on view
place: label: place made
content: United States: California, Berkeley
topic: label: Subject
content: Mathematics
setName: label: See more items in
content: Medicine and Science: Mathematics
label: See more items in
content: Punch Cards
creditLine: label: Credit Line
content: Transfer from Smithsonian Institution Libraries
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1991.0287.01
label: catalog number
content: 1991.0287.01
label: accession number
content: 1991.0287
objectType: label: Object Name
content: Punch Cards, Set Of
physicalDescription: label: Physical Description
content: paper (overall material)
label: Measurements
content: overall: 6.7 cm x 20.2 cm x 9.5 cm; 2 5/8 in x 7 15/16 in x 3 3/4 in