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REDUCE 2: A computer program for the symbolic reduction of large block diagrams (1974)

Lorenzo, C. F. ; Riehl, J. P.

In: CASI

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Publication Date: 2019-06-27

Description: REDUCE 2 is reported as a FORMAC program which symbolically calculates the transfer function(s) of any linear-block-diagram output variable to any or all input variables. The program requires as input a set of algebraic expressions representing the block diagram, the desired transfer function(s), and a string of variables indicating the desired order of reduction. The solution is presented in the compact form of a set of nested functions (super G's). The program can handle systems as large as 600 equations and is intended as a tool for the analysis of complex control and dynamic systems. A companion FORTRAN program, EVAL 2, which numerically evaluates the solution set to obtain amplitude ratio and phase angle as functions of frequency is also presented.

Keywords: COMPUTERS

Type: NASA-TN-D-7621 , E-5860

Format: application/pdf

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