Comparative Operator result is wrong

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여춘 박
여춘 박 on 12 Apr 2021
Commented: Stephen23 on 12 Apr 2021
I tried to run the if statement but this happens.
The result must be true(=1) in the last instruction but it returns false(=0)...
Anyone knows what is the problem???

Answers (3)

KSSV
KSSV on 12 Apr 2021
Note that you are comparing two floating point numbers and such numbers cannot be comapred using ==. Follow
tol = 10^-5 ;
idx = abs(val1-val2)<tol

Steven Lord
Steven Lord on 12 Apr 2021
Two numbers that are displayed the same may not represent the same stored value. See this Answers post for more information about floating point numbers.

Image Analyst
Image Analyst on 12 Apr 2021

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