# Sequence a_n =1/n

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Michal Waligora on 17 Jan 2020
Answered: Image Analyst on 17 Jan 2020
I'm a beginner in Matlab
Please could you help me with the following code:
I want to write a sequence s_n = 1/n where n=1,2...100 and plot the result.
I tried this, n=1
for i = 1:100
n= n+1
end
Sn= 1/n
But It only displays the last number for n=100 and divides
I have no idea how to do it and the results I found don't satisfy me.
Thank you

Star Strider on 17 Jan 2020
Edited: Star Strider on 17 Jan 2020
Use element-wise division:
n = 1:100;
format short
Seq = 1./n
producing:
Seq =
1.0000 0.5000 0.3333 0.2500 0.2000 0.1667 0.1429 0.1250 0.1111 ...
alternatively:
format rat
Seq = 1./n
producing:
Seq =
1 1/2 1/3 1/4 1/5 1/6 ...
EDIT — (17 Jan 2020 at 17:11)
Forgot to include the plot call.
Here it is:
figure
plot(Seq)
grid
This is the same as:
figure
plot((1:numel(Seq)), Seq)
grid

Image Analyst on 17 Jan 2020
See The FAQ. It answers the question. Look at the rest of the FAQ for lots more goodies.