Compare values from for loop
显示 更早的评论
Hello, I just experienced something weird (at least something I wouldn't have expected):
for m=0.4:0.2:1.2
if (m == 0.6)
a = 2;
end
end
Now even if my m is assigned to 0.6 the if condition will give 0. Why is that and how can I avoid that?
Thanks, Paul
采纳的回答
It looks like this is resulting from the limited precision of floating point numbers. When you pause the execution of the loop when m should be 0.6 and type m - 0.6, you should get a very small number like 1.1102e-16. Does the following change fix your problem?
for m=0.4:0.2:1.2
if abs(m - 0.6) <= eps(0.6)
a = 2;
end
end
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