Comparative Operator result is wrong
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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???
1 个评论
Stephen23
2021-4-12
"Anyone knows what is the problem???"
The assumption that binary floating point numbers have infinite precision:
This is worth reading as well:
回答（3 个）
KSSV
2021-4-12
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
2021-4-12
0 个投票
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
2021-4-12
0 个投票
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