small floating point has been considred as zero value!
3 views (last 30 days)
Show older comments
hi,
x=0.16
if x>0.1
d=1
else
d=0
end
the answer is 0
I do not know where is the problem?
1 Comment
Les Beckham
on 1 Mar 2024
I don't see a problem. Are you sure this is really the code that you are having the problem with?
x = 0.16
if x > 0.1
d = 1
else
d = 0
end
Answers (2)
Steven Lord
on 1 Mar 2024
More likely than not, your value for x is not what you think it is. If we run your code on Answers:
x=0.16
if x>0.1
d=1
else
d=0
end
Now if your number was part of a larger array with numbers of varying magnitudes, part of the display may look like 0.16 without it actually being 0.16:
x = [1e-6 0.16e-3]
Note that x(2) displays as 0.16 but there's that "1.0e-03 *" right below the name of the variable. So it's actually much smaller; basically one one-thousandth of 0.16:
y = x(2)
1000*y-0.16
and that is not greater than 0.1 (aka 1.0000e-01)
format shorte
z = 0.1
So when we use y in place of 0.16, MATLAB correctly identifies that y is not greater than 0.1:
if y > 0.1
d = 1
else
d = 0
end
0 Comments
Star Strider
on 1 Mar 2024
Your code works correctly when I run it here —
x=0.16
if x>0.1
d=1
else
d=0
end
d
.
0 Comments
See Also
Categories
Find more on Logical in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!