Precision error adding doubles

Posted by wrongusername on Stack Overflow See other posts from Stack Overflow or by wrongusername
Published on 2010-03-17T23:09:50Z Indexed on 2010/03/17 23:11 UTC
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precision

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java

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double

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addition

When I try to do

term[number].coefficient += co;

with both term[number].coefficient and co doubles, adding -8.2 to +1 gives me -7.300000000000001. How can I make it equal to 7.3?

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