Can anybody help this loop question?

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Zhipeng
Zhipeng 2019-2-21
评论： Stephen23 2019-2-21
Temp = 20;
g = 0.1;
x = 0.11;
while(Temp > 0 && x ~= g)
Temp = Temp -1
x = x -0.001
if(x==g)
print('lalala')
end
end
Running code shown above should give me a 'lalala' message in commond window at 10th loop, but I didn't get it and also it didn't break the while loop when x==g;
I added a break point inside the loop and trying to run in step, I get results in the figure below and matlab judge that x==g is logic 0 while they should equal to each other.
Can somebody help explain it?
微信图片_20190221020958.png

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采纳的回答

KSSV
KSSV 2019-2-21
编辑：KSSV 2019-2-21
Temp = 20;
g = 0.1;
x = 0.11;
while(Temp > 0 && x ~= g)
Temp = Temp -1
x = x -0.001
if abs(x-g)<=10^-3
disp('lalala')
end
end
Read about how to compare flottant numbers.

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