magic square

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Application of linear algebra

Problem Statement
A magic square of size m is an m by m square matrix whose entries consist of all integers
between 1 and m?, with the property that the sum of the entries of each column and
row is the same. The sum of the entries of any row or column of a magic square of size m
is m(m²+1)/2
Lets take a magic square of size m = 2:
X1 X2
X3 X4
Make 4 equations by using above properties for sum of two rows and two columns.
Use X1, X2, X3, X4 as unknowns (variables). Get the echlon/reduced echlon form
(whichever you want ot use) to attain general solution.
Transcribed Image Text:Problem Statement A magic square of size m is an m by m square matrix whose entries consist of all integers between 1 and m?, with the property that the sum of the entries of each column and row is the same. The sum of the entries of any row or column of a magic square of size m is m(m²+1)/2 Lets take a magic square of size m = 2: X1 X2 X3 X4 Make 4 equations by using above properties for sum of two rows and two columns. Use X1, X2, X3, X4 as unknowns (variables). Get the echlon/reduced echlon form (whichever you want ot use) to attain general solution.
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