Computer Programs
NESC0188 CMPXMAT.
last modified: 01-APR-1966 | catalog | categories | new | search |

NESC0188 CMPXMAT.

CMPXMAT, Transfer Function Calculation for Linearized Differential Equation

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1. NAME OR DESIGNATION OF PROGRAM:  CMPXMAT.
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2. COMPUTERS
To submit a request, click below on the link of the version you wish to order. Rules for end-users are available here.
Program name Package id Status Status date
CMPXMAT NESC0188/01 Tested 01-APR-1966

Machines used:

Package ID Orig. computer Test computer
NESC0188/01 CDC 3600 CDC 3600
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3. NATURE OF PHYSICAL PROBLEM SOLVED

A system of N linear equations derived from the Laplace transform of a set of linearized differential equations is solved for amplitude and phase angle as a  function of frequency.
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4. METHOD OF SOLUTION

For each frequency the coefficient matrix and its Crout reduction are used as constants for iterative refinement of the solution vector.
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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM:  N must be less than or equal to 70.
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6. TYPICAL RUNNING TIME

For N = 44 and two frequencies the total time  is 2.34 minutes. Loading of program and data cards and printing used 1.5 minutes.
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7. UNUSUAL FEATURES: UNUSUAL FEATURES OF THE PROGRAM
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8. RELATED OR AUXILIARY PROGRAMS: RELATED AND AUXILIARY PROGRAMS
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9. STATUS
Package ID Status date Status
NESC0188/01 01-APR-1966 Tested at NEADB
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10. REFERENCES
NESC0188/01, included references:
- P.G. Kvick:
  CMPXMAT, A Transfer Function Evaluation Program
  TIM-940 (July 12, 1965).
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11. MACHINE REQUIREMENTS

32k storage with 3 magnetic tapes and the standard input and output units.
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12. PROGRAMMING LANGUAGE(S) USED
Package ID Computer language
NESC0188/01 FORTRAN-IV
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13. OPERATING SYSTEM OR MONITOR UNDER WHICH PROGRAM IS EXECUTED:  Master control system (MCS).
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14. ANY OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS:  Presently running on on-line system.
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15. NAME AND ESTABLISHMENT OF AUTHOR

                 Paul G. Kvick
                 Pratt and Whitney Aircraft - Canel
                 Middletown, Connecticut
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16. MATERIAL AVAILABLE
NESC0188/01
File name File description Records
NESC0188_01.001 SOURCE 291
NESC0188_01.002 DATA 129
NESC0188_01.003 OUTPUT 318
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17. CATEGORIES
  • E. Space-Independent Kinetics

Keywords: differential equations, transfer functions.