Computer Program for Precedence Ordering

PROGRAM MATRIX FOR DECOMPOSITION OF LARGE SCALE SYSTEMS THE OBJECTIVE OF THE PROGRAM IS TO ARRANGE IN PRECEDENCE 

PAIRS ALTERNATING BETWEEN EQUATION NUMBER AND VARIABLE NUMBER. THE ORIGINAL ASSIGNMENT OF EQUATION AND VARIABLE NUMBERS ARE ARBITRARY. ENTER IN COLUMNS 1-3 AN EQUATION NUMBER. ENTER IN COLUMNS 5-7 ONE OF THE VARIABLE NUMBERS IN THE SELECTED EQUATION. IN COLUMNS 9-11 ENTER AN EQUATION NUMBER (THE SAME EQUATION OR ANOTHER) AND IN COLUMNS 13-15 ENTER THE NUMBER OF ONE OF THE VARIABLES IN THE SPECIFIED EQUATION. 

CONTINUE INTRODUCING EQUATION NUMBERS AND VARIABLE NUMBERS UNTIL ALL THE NONZERO ELEMENTS HAVE BEEN ACCOUNTED FOR. EACH CARD MUST BE FILLED COMPLETELY, EXCEPT THE LAST CARD WHICH MUST HAVE TWO BLANK FIELDS, OR THE READING WILL STOP. 

EVERY NUMBER MUST BE RIGHT JUSTIFIED IN THE FI ELD. THE LAST CARD MUST CONTAIN AT LEAST TWO BLANK FIELDS FOLLOWING THE DATA. THIS MAY NECESSITATE ADDING A BLANK CARD AT THE END OF THE DATA. 

THESE DATA CARDS READ IN THOSE VARIABLES 

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