MATLAB: Multiplying a matrix

multiplication

i have a matrix

A=[3 5 7

5 6 0

5 9 4]

i want to square each element and add along row wise and display

for ex

3^2+5^2+7^2

ans is 89

so i need as

122

pleas guide

A=[3 5 7;
   5 6 0;
   5 9 4];
for x = 1 : 3
    B(x,:) = sum(A(x,:).^2);
end
B

Something like this should work

s = 0;
for i=0:min(x,y)
    for k=0:x-1
        s = s + (-1)^k * D(2*x-2*k-2*i, 2*y+2-2*i) * T(2*x-2*k-2*i, 2*y+2-2*i)^(z/2)
    end
end

Use repmat to avoid manually typing all 160 of those ‘%q’ repeats!

Try this:

formatSpec = ['%f',repmat('%q',1,160), '%[^\n\r]'];