Asked by O
on 14 Nov 2013

Write a program that receives an integer (n) and then calculate the sum of integers 1 to n (exp. 1 + 2 + 3 + ….. + n) using for loop

so confused :(

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Answer by Image Analyst
on 14 Nov 2013

Accepted answer

Use inputdlg() to get n - look in the help for examples. Then use a for loop. Here's a hint to get you started.

theSum = 0; for k = 1 : n % your code goes here. theSum = theSum + ........ end

I don't know what you mean by exp. Do you want e to the power? Like exp(1) + exp(2) + exp(3) + .... OR do you want exp(1+2+3+.....????

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## 1 Comment

## Roger Stafford (view profile)

Direct link to this comment:http://www.mathworks.com/matlabcentral/answers/106027#comment_179838

As a last desperate measure you could simply write:

as Gauss is said to have correctly done in his primary school years.