how to add two sums by using loops?

what commond will be use for this ∑_(j=1)^5▒∑_(i=1)^2▒(i+j)

[Stephen23]

Why do you need loops? Vectorized code is neater, faster and more efficient:

http://www.mathworks.com/help/matlab/matlab_prog/vectorization.html

[rising falcon]

how to solve it by using loops? ∑_(j=1)^5▒〖j+〗 ∑_(i=1)^2▒i

[Stephen23]

MATLAB has more efficient ways of doing many mathematical operations, without requiring loops. Read the link that I gave.

Can you please explain the syntax that you use to write the sum, or upload an image so we can see the original.

Answer 1

[the cyclist]

I didn't fully understand the question, but maybe you want a structure like

NI = 5;
NJ = 10;
sum = 0;
for ii=1:NI
for jj=1:NJ
  sum = sum + 3;
end
end

Be aware that there are often vectorized methods that will be more efficient for calculation.

[rising falcon]

sumession veries from j=1 to 5 and i=1 to 2 and i want to add the i+j by using loops

[the cyclist]

Is this homework? I don't want to solve the whole problem for you. It should be VERY easy for you to adapt what I have written.

[Image Analyst]

One thing to change is the name of the variable. Don't use sum because it's the name of an important built-in function.