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Sin(x)**2 + cos(x)**2 = 1Attempts to achieve tasteful automatic employment of the identities sin sq x + cos sq x = 1 and cos sq h x -sin sq h x = 1 in a manner which truly minimizes the complexity of the resulting expression are described. The disappointments of trigonometric reduction, trigonometric expansion, pattern matching, Poisson series, and Demoivre's theorem are related. The advantages of using the method of comparative combinatorial substitutions are illustrated.
Document ID
19770021844
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Stoutemyer, D. R.
(Hawaii Univ. Honolulu, HI, United States)
Date Acquired
August 8, 2013
Publication Date
January 1, 1977
Publication Information
Publication: NASA. Langley Res. Center Proc. of the 1977 MACSYMA Users' Conf. (NASA)
Subject Category
Numerical Analysis
Accession Number
77N28788
Funding Number(s)
CONTRACT_GRANT: NSF MCS-75-22893
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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