Re: An interesting problem


"umar " <umarkhan_80@xxxxxxxxxxx> wrote in message
news:gu8ibm$jb9$1@xxxxxxxxxxxxxxxxxxxxx
hi,
I tried the following code

i=0;
x=0;

for i=1:10
x=x+0.1
end
x-1


at the end x-1 should be zero, but it turns out to be -1.1102e-016 , WHY?

See Q6.1 in the newsgroup FAQ for an explanation and links to a few papers
that go into more depth on floating-point computation:

http://matlabwiki.mathworks.com/MATLAB_FAQ

--
Steve Lord
slord@xxxxxxxxxxxxx


.

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