- #1
Cinitiator
- 69
- 0
Homework Statement
What does the real number sign with a + under it mean? Check the example below.
Homework Equations
http://upload.wikimedia.org/wikibooks/en/math/8/d/3/8d380fa4b673b84ddb613bed8ab8f189.png [Broken]
The Attempt at a Solution
Tried Googling, but didn't find anything.
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