Unary Sign Video
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Definition
the unary minus operator takes the negative of a number. For example, -X has the same value as (-1)*X. For completeness, Java also has a unary plus operator, as in +X, even though it doesn't really do anything.
Source: Reges & Stepp, 2007
Example
Example sentence for context: "The unary minus operator takes the negative of a number."
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