Vector where elements equals previous elements + 1

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Karl
Karl 2013-8-14
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.
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Daniel Shub
Daniel Shub 2013-8-14
This is such a basic thing that I would really suggest you having another read of the manual.

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Andrei Bobrov
Andrei Bobrov 2013-8-14
do as wrote Daniel
OR
end1 = 3;
for jj = end1:-1:1
vector(jj) = jj;
end

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Daniel Shub
Daniel Shub 2013-8-14
Using end is a bad choice since it is special in MATLAB. I think what you are asking for is
a:b
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Azzi Abdelmalek
Azzi Abdelmalek 2013-8-14
a=[1 1 1)
out=cumsum(a)
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Daniel Shub
Daniel Shub 2013-8-14
Ahh now I see. I can see how the description would lead you to think CUMSUM is the right answer.

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