On Sep 12, 2010, at 11:27 AM, Cuckovic Paik wrote:
I appreciate all you help. This is only for instructional purpose:
A = matrix(c(0,1,1,-2,-3,1,2,-1,0,2,2,4,1,-3,-2,1,-4,-7,-1,-19),
ncol=5,
byrow=T)
B
=matrix(sample(c(0,1,1,-2,-3,1,2,-1,0,2,2,4,1,-3,-2,1,-4,-7,-1,-19),),
ncol=5, byrow=T)
Which print func( A, B, A+B) can print the resulting matrices A and
B and
A+B in the following format?
[,1] [,2] [,3] [,4] [,5] [,1] [,2] [,3] [,4] [,5]
[,1] [,2] [,3] [,4] [,5]
[1,] 0 1 1 -2 -3 [1,] 2 -1 0 2
1 [1,]
2 0 1 0 -2
[2,] 1 2 -1 0 2 + [2,] 1 -4 2 -2 -2
= [2,]
2 -2 1 -2 0
[3,] 2 4 1 -3 -2 [3,] -3 1 -7 1
-1 [3,]
-1 5 -6 -2 -3
[4,] 1 -4 -7 -1 -19 [4,] -3 0 4 -19 1
[4,] -2
-4 -3 -20 -18
for( i in 1:nrow(A) ) { cat(sprintf("%4.0f", A[i, ]), paste("
",if( i==3 ){"+"}else{" "}, " ", sep=""),sprintf("%4.0f",B[i, ]),
paste(" ",if( i==3 ){"="}else{" "}, " ", sep=""), sprintf("%4.0f", (A
+B)[i, ]), "\n" )}
--
David Winsemius, MD
West Hartford, CT
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