Summarizing numbers using a loop
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Im trying to get the hang of matlab and one exercise i found was to summarize all integers 1-100. It is too easy just using the sum function but my loop won't work.
n=0;
sum=0;
if n<101 %if n is less than 101 (i wan't to include 100) - do the following:
n=n+1; %add 1 to n
sum=sum+n; %add n to sum
end
sum %display sum
end
I get sum=1, why?
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Geoff Hayes
2017 年 9 月 4 日
編集済み: Geoff Hayes
2017 年 9 月 4 日
Olle - your code seems to be missing the for loop so I suspect that is the reason that you are only getting a value of 1. Consider the following
mySum = 0;
for k = 1:100
mySum = mySum + k;
end
We iterate over each integer from 1 to 100 and add that value to our running total (the mySum variable). (You were using a variable named sum to do the same thing. I recommend against this since sum is a built-in MATLAB function and "replacing" the function with your local variable will cause unexpected errors if you then choose to use the sum function.)
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