Characteristic equation (calculus) (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Characteristic equation (calculus)" in English language version.

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archive.org

Baumol, William J. (1970). Economic Dynamics (3rd ed.). p. 172.
Chiang, Alpha (1984). Fundamental Methods of Mathematical Economics (3rd ed.). McGraw-Hill. pp. 578, 600. ISBN 9780070107809.
Cohen, Abraham (1906). An Elementary Treatise on Differential Equations. D. C. Heath and Company.

efunda.com

Chu, Herman; Shah, Gaurav; Macall, Tom. "Linear Homogeneous Ordinary Differential Equations with Constant Coefficients". eFunda. Retrieved 1 March 2011.

lamar.edu

tutorial.math.lamar.edu

Dawkins, Paul. "Differential Equation Terminology". Paul's Online Math Notes. Retrieved 2 March 2011.

usf.edu

etc.usf.edu

Smith, David Eugene. "History of Modern Mathematics: Differential Equations". University of South Florida.