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Mathematics 8 Online
OpenStudy (anonymous):

Does anyone know what a (+) circled plus mean? If so could you please explain to me what it does and when it is used?

geerky42 (geerky42):

Like this? \(\oplus\)

geerky42 (geerky42):

It means xor (exclusive disjunction) Basically like "or, but not both"

geerky42 (geerky42):

It also mean Direct Sum http://en.wikipedia.org/wiki/Direct_sum Does that help?

geerky42 (geerky42):

It's also astronomical symbol for Earth...

OpenStudy (anonymous):

Sorry for not responding earlier. Yes, thats the symbol, @geerky42, and I did find that wikipedia page, but the problem is that I don't understand what it is saying.

geerky42 (geerky42):

Well, exactly which Wikipedia page? exclusive disjunction or direct sum?

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