while loop for series
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im suppose to evaluate the series y=1/m where m is 1 to 5
I can find the different values for y using a while loop statment but cant get it to sum all the values
here is my code so far
clear
m=0
while (m<5)
m=m+1
r=1/m
y=sum(r)
end
what am i doing wrong?
回答（1 个）
"what am i doing wrong?"
You are not actually adding anything to y on each iteration, instead you completely overwrite y with a new value, thus making your loop totally superfluous (because you only return the value of the last iteration). In any case a loop is not required:
This is the simple MATLAB way (no loop):
>> m = 1:5;
>> y = sum(1./m)
y = 2.2833
A pointlessly complex looped way:
>> y = 0;
>> for k = m, y = y+1./k; end
>> y
y = 2.2833
Of course you could make that loop even more complex using while.
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2019-9-28
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