Mathematical Table for Use with a Marchant Calculating Machine, Square Root Divisors
date: label: date made
content: 1944
label: date made
content: 1941
name: label: maker
content: Marchant Calculators
notes: label: Description
content: Before the introduction of calculating machines that could compute cube roots of numbers directly, calculating machine manufacturers distributed tables to assist in these calculations. This table was developed by employees of Marchant Calculating Machine Company in Oakland, California, for use with its machines.
label: Description
content: The table is of heavy paper, printed in black., and includes instructions on how it is to be used to find cube roots to the fifth and to the tenth significant figure. A drawing of a Marchant calculating machine is at the top, toward the left. A mark at the bottom left reads: TABLE 56. Another mark along the bottom reads: PRINTED IN U. S. A. A third mark along the bottom reads: COPYRIGHT 1941 MARCHANT CALCULATING MACHINE COMPANY, OAKLAND, CALIF., U. S. A.
label: Description
content: Compare 313984.04, which gives a table for finding cube roots. The table came with Marchant calculating machine MA.334384. The donor, Richard H. Hronik (1911–2003), held a number of patents in transportation engineering and did design work relating to railroad systems built for the Indian government. He went on to work for the firm Melpar as a materials science engineer.
label: Description
content: References: D. H. Lehmer, “Review of <I>Square Root Divisors</I>. . .,” <I>Mathematical Tables and other Aids to Computation</I>, 1, 1945, pp. 356–357.
label: Location
content: Currently not on view
place: label: place made
content: United States: California, Oakland
topic: label: Subject
content: Mathematics
label: Subject
content: Business
setName: label: See more items in
content: Medicine and Science: Mathematics
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content: Mathematical Charts and Tables
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content: Science & Mathematics
creditLine: label: Credit Line
content: Gift of R. H. Hronik
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MA.313984.03
label: accession number
content: 313984
label: catalog number
content: 313984.03
objectType: label: Object Name
content: sheet
label: Object Name
content: mathematical table
physicalDescription: label: Physical Description
content: paper (overall material)
label: Measurements
content: overall: .1 cm x 27.9 cm x 21.5 cm; 1/32 in x 10 31/32 in x 8 15/32 in