Question

Write a function called multiSum(A). This particular function should take in a N × M array, A, and return four results:

 A 1 × M vector with the sum of the columns,
 A N × 1 vector with the sum of the rows, and
 Two numbers containing the sums of the two diagonals, the major diagonal first.

For example:

   columnSum([1 2 3; 4 5 6; 7 8 9]) should return
         [12 15 18], [6 15 24]', 15 and 15
   columnSum([0 2 3; 4 0 6; 7 8 0]) should return
         [11 10 9], [5 10 15]', 0 and 10
   columnSum(eye[5,5]) should return
   [1 1 1 1 1], [1 1 1 1 1]', 5 and 1
        columnSum([]) should return [], [], 0 and 0

Answer 1

Please give thumbs up, thanks

code:

function [rowSum,colSum,majorsum,minorsum]=multiSum(A)
[row,col]=size(A);
majorsum=0;
minorsum=0;
for i=1:row
rowSum(i)=sum(A(i,:));
colSum(i)=sum(A(:,i));
end
colSum=colSum';
for i=1:row
for j=1:col
if i==j
majorsum=majorsum+A(i,j);
end
if i+j==row+1
minorsum=minorsum+A(i,j);
end
end
end
end