By R. D. Wilkins
Communications of the ACM,
December 1966,
Vol. 9 No. 12, Pages 855-859
10.1145/365916.365924
Comments
The evaluation, by the propagation of variance technique, of the sensitivity of time-varying systems to initial condition and parameter errors, involves the determination of several system-dependent partial derivative matrices. This requirement has led to separate programs for each system under investigation. A new program, through utilization of the Wengert differentiation technique, automatically determines the required matrices from specific system equations supplied in subroutine from at execution time, eliminating the need for individualized programs, and presaging the further development of extremely general computer programs.
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