How do I make a for loop for summing up to specified integer

How can I make a for loop for summing up integers starting at 0 and going to the integer the user inputs(user can choose any integer)

ex:

user inputs 3: 1+2+3

user inputs 6: 1+2+3+4+5+6

Answer 1

[Azzi Abdelmalek]

n=6
out=sum(1:n)

[Joe810]

How will this work with a for loop?

[Azzi Abdelmalek]

Read this help http://www.mathworks.com/help/matlab/matlab_prog/loop-control-statements.html

Answer 2

[Purushottama Rao]

clc
k=input('Enter no');
sum=0;
for n=1:k
    sum=sum+n;
end
disp(sum)

[Purushottama Rao]

'For' loop is not necessary for whay you wanted to do. You can rather use input function along with sum. However since you were specific to use for loop, above code is given