Comparing 2 float nombers

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Mohammad hossein Fakoori
Mohammad hossein Fakoori 2019 年 5 月 4 日
回答済み: Image Analyst 2019 年 5 月 4 日
Hello I've some problem for comparing float nombers... a=123.123;
b=a-123;
b==0.123;
ans =
logical
0
...and whats the problem???
Tanx again...

回答 (2 件)

KALYAN ACHARJYA
KALYAN ACHARJYA 2019 年 5 月 4 日
編集済み: KALYAN ACHARJYA 2019 年 5 月 4 日
>> format long
>> a=123.123
a =
1.231230000000000e+02
>> b=a-123
b =
0.123000000000005
>> b==0.1230
ans =
0
Read here more detail

Image Analyst
Image Analyst 2019 年 5 月 4 日
Try the function ismembertol().
See more discussion of your FAQ in the FAQ document: The MATLAB FAQ

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