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Question 19635: find element a23 of matrix A if A=
2 -3 4
5 0 -6
7 2 -8
Answer by venugopalramana(3286)   (Show Source):
You can put this solution on YOUR website! find element a23 of matrix A if A=
2 -3 4
5 0 -6
7 2 -8
MATRIX ELEMENTS ARE THE NUMBERS IN THE MATRIX..EACH NUMBER IS GIVEN AN ADDRESS.
WE CALL THE MATRIX AS AN ARRAY OF ROWS AND COLUMNS
ROW 1 IS HAVING 2,-3,4
ROW 2 IS HAVING 5,0,-6
ROW 3 IS HAVIN 7,2,-8
SIMILARLY COLUMN 1 IS HAVING 2,5,7 ETC...NOW WITH THIS NOMENCLATURE, LIKE WE GIVE OUR HOUSE ADDRESS AS INTERSECTION OF A CROSS ROAD AND MAIN ROAD,HERE WE USE INTERSECTION OF ROW NO.? AND COLUMN NO.??.TO GIVE THE ADDRESS.....A23 MEANS THE ELEMENT OR NUMBER IN THIS CASE IN ROW 2 AND COLUMN 3...WHICH IS -6
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