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Fungrim entry: 432926

sgn ⁣(z)1\left|\operatorname{sgn}\!\left(z\right)\right| \le 1
Assumptions:zCz \in \mathbb{C}
TeX:
\left|\operatorname{sgn}\!\left(z\right)\right| \le 1

z \in \mathbb{C}
Definitions:
Fungrim symbol Notation Short description
Absz\left|z\right| Absolute value
Signsgn ⁣(z)\operatorname{sgn}\!\left(z\right) Sign function
CCC\mathbb{C} Complex numbers
Source code for this entry:
Entry(ID("432926"),
    Formula(LessEqual(Abs(Sign(z)), 1)),
    Variables(z),
    Assumptions(Element(z, CC)))

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2019-09-15 14:14:26.267625 UTC