# Vector where elements equals previous elements + 1

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Karl on 14 Aug 2013
I wish to make a column vector where ecah element eqaul the previous element + 1. I also want to be able to decide by a loop how mane elements the vector should contain. Example: start =1;end=1 should give the vector [1}. start=1;end=3 should give the vector [1 2 3]. I hope someone has an idea about how to solve this.
Daniel Shub on 14 Aug 2013
This is such a basic thing that I would really suggest you having another read of the manual.

Andrei Bobrov on 14 Aug 2013
do as wrote Daniel
OR
end1 = 3;
for jj = end1:-1:1
vector(jj) = jj;
end
##### 2 CommentsShowHide 1 older comment
Karl on 15 Aug 2013
Thanks!

Daniel Shub on 14 Aug 2013
Using end is a bad choice since it is special in MATLAB. I think what you are asking for is
a:b
Karl on 15 Aug 2013
That did the trick. Thanks!

Azzi Abdelmalek on 14 Aug 2013
a=[1 1 1)
out=cumsum(a)
Daniel Shub on 14 Aug 2013
Ahh now I see. I can see how the description would lead you to think CUMSUM is the right answer.