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If Condition match but got the else statement ?

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I Made
I Made on 27 Mar 2013
To put it simple my code similar to :
k=6
if(a/b<k) && (a/b>=0)
STATEMENT1
elseif(a/b>-k) && (a/b<0)
STATEMENT2
end
The problem is i got a/b = 0, so it should give me STATEMENT1 but i got STATEMENT 2, does anyone know how i can figure out my mistake?
  3 Comments
I Made
I Made on 27 Mar 2013
Edited: I Made on 27 Mar 2013
i'm trying using that but little modification, like :
posisi_eks(l,4)=segment(j,i)/c(i)==0;
on the poin that segment(j,i) is 0 it return me 1 . but how could that possibly done? i checked the segment(j,i) at that point = 0, and the c(i) at that pint is 0,9375. So the result should be 0/0.9375==0 return me 0?

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Answers (2)

Walter Roberson
Walter Roberson on 27 Mar 2013
Try using the command
format long g
and then displaying a/b
It probably isn't really 0.

Jan
Jan on 28 Mar 2013
Please read your question again and note, that Matlab does not perform any strange or magic actions. Then these two details:
1. if(a/b<k) && (a/b>=0)
2. The problem is i got a/b = 0, so it should give me STATEMENT1 but i got STATEMENT 2
imply, that either a/b<k is FALSE, or your assumption that a/b==0 is wrong. A third possibility is, that you did not save the M-file after editing, such that Matlab does not run the program you currently see in the editor.
There are no other solutions. Walter's suggestion to increase the displayed precision is exhaustive to identify the problems.

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