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An electronic digital polynomial root extractor


Johnson, Robert Royce (1956) An electronic digital polynomial root extractor. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/XSCJ-XT27.


Many mathematical techniques exist for factoring algebraic polynomials. Most require much computation and programming and are practical methods only with large machine computers. A special purpose electronic digital computer designed to factor polynomials of high degree is described. The mathematical method is an adaptation of a Taylor serial approximation used to connect the problem and its formulation with a special machine implementation. The computer uses a small rotating magnetic drum, about 200 germanium diodes, and 20 logical flip-flops. Unique features of the system are the simple algebraic logical design techniques and the ease of programming. The result is a small, simple, and useful computer.

Item Type:Thesis (Dissertation (Ph.D.))
Degree Grantor:California Institute of Technology
Division:Engineering and Applied Science
Major Option:Electrical Engineering
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Frankel, Stanley P.
Thesis Committee:
  • Unknown, Unknown
Defense Date:1 January 1956
Record Number:CaltechETD:etd-03242004-145118
Persistent URL:
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:1092
Deposited By: Imported from ETD-db
Deposited On:25 Mar 2004
Last Modified:21 Dec 2019 01:51

Thesis Files

PDF (johnson_rr_1956.pdf) - Final Version
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