How to use FOR loops in Matlab ?

[Yash Shil Balgobin]

Hi, I would really appreciate it if someone could explain me how to do it using comments. Thank you.

[Chad Greene]

Hi Yash,

Welcome to the forum. It's totally acceptable to ask for help with homework here, but I think you'll have better luck if you can describe what you've tried so far. If you don't know where to begin, at least write in your own words what you're trying to accomplish.

[Yash Shil Balgobin]

Hi Chad. I really appreciate you taking time to reply to my question. I am trying to do this question using only FOR loops. However, tutorials and learning videos about FOR loops are somewhat limited. I looked up for a few examples and tutorials on FOR loops but the examples were kind of advanced.

Answer 1

[David Hill]

Look at the sum() function and element-wise operations. No loop is needed. I provided the numerator as an example.

sum((-1).^(1:k).*(1:k).^2)

[Yash Shil Balgobin]

Hi David. I need to do the above question using FOR loops. I did try something but it does not work. I am a beginner in Matlab.

[David Hill]

Instead of doing the calculation all at once, just sum it as you go with a for-loop

n=20;
y=0;
for k=1:n
  y=y+(-1)^k*k^2/%you finish
end

[Yash Shil Balgobin]

Thank you so much David. This actually helped a lot. Thank you very much.