Instruction Manual for Pickett & Eckel Log Log Trig Slide Rule
- The citation information for this small 32-page booklet is: Maurice L. Hartung, How to Use the 300 Log Log Trig Pocket Slide Rule (Chicago: Pickett & Eckel, Inc., 1949). It provides general information on how to use slide rules, including the arithmetical operations, locating the decimal point, combining multiplication and division, using the folded scales, calculating roots, trigonometry, and vectors.
- Model 300 was a six-inch, pocket-sized duplex slide rule and is not presently represented in the Smithsonian collections, although 1999.0096.01 is a ten-inch log log trig rule. Hartung was a University of Chicago professor who helped Pickett & Eckel market their products to schools and who wrote several instruction manuals for the company's slide rules. See 1979.0601.02.
- Currently not on view
- Data Source
- National Museum of American History
- Hartung, Maurice L.
- date made
- Credit Line
- Gift of Frank M. Graves
- Physical Description
- paper (overall material)
- overall: 15.2 cm x 10.7 cm x .2 cm; 5 31/32 in x 4 7/32 in x 3/32 in
- Object Name