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{{Built-in|Signum|×}}, '''Sign''', '''Sign of''', or '''Direction''' is a [[monadic]] [[ | {{Built-in|Signum|×}}, '''Sign''', '''Sign of''', or '''Direction''' is a [[monadic]] [[scalar function]] which returns the [[wikipedia:Sign function|sign]] of a real or [[complex]] number. That is, it returns 0 when given an argument of 0, and otherwise returns a number with [[magnitude]] 1 given by [[Divide|dividing]] the argument by its own magnitude. | ||
== Examples == | == Examples == | ||