how to use while loop

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Sharen H
Sharen H on 23 Nov 2012
i have written a code to find the mod and dividend values of an image.if i
use while loop its getting executed continuously with out stop..can any one
help me where i am wrong...Thanks in advance
share = [250 250 ]
for m= 1:r
for n = 1:c
while share(m,n)>=0

Answers (2)

Walter Roberson
Walter Roberson on 23 Nov 2012
Suppose share(m,n) was 1. Then 1/5 is 0.2 and ceil(0.2) is 1. Opps, infinite loop!

Matt Fig
Matt Fig on 23 Nov 2012
Edited: Matt Fig on 23 Nov 2012
Think about this for a second: share(m,n) is initially positive. Then you repeatedly divide it by 5 in the inner while loop. How do you expect to ever get share(m,n) to be negative simply by dividing it by 5? But that is exactly what is needed to break that inner while loop....
For all x > 0: x/5 > 0, correct? So of course x/5 >= 0


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