|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
http://functions.wolfram.com/02.13.16.0008.01
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
DirectedInfinity[Sign[z]] == DirectedInfinity[z]
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Cell[BoxData[RowBox[List[RowBox[List["DirectedInfinity", "[", RowBox[List["Sign", "[", "z", "]"]], "]"]], "\[Equal]", RowBox[List["DirectedInfinity", "[", "z", "]"]]]]]]
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<math xmlns='http://www.w3.org/1998/Math/MathML' mathematica:form='TraditionalForm' xmlns:mathematica='http://www.wolfram.com/XML/'> <semantics> <mrow> <mrow> <mrow> <mi> sgn </mi> <mo> ⁡ </mo> <mo> ( </mo> <mi> z </mi> <mo> ) </mo> </mrow> <mo> ⁢ </mo> <mi> ∞ </mi> </mrow> <mo> ⩵ </mo> <mrow> <mi> z </mi> <mo> ⁢ </mo> <mi> ∞ </mi> </mrow> </mrow> <annotation-xml encoding='MathML-Content'> <apply> <eq /> <apply> <times /> <apply> <ci> Sign </ci> <ci> z </ci> </apply> <infinity /> </apply> <apply> <times /> <ci> z </ci> <infinity /> </apply> </apply> </annotation-xml> </semantics> </math>
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
| Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", RowBox[List["DirectedInfinity", "[", RowBox[List["Sign", "[", "z_", "]"]], "]"]], "]"]], "\[RuleDelayed]", RowBox[List["DirectedInfinity", "[", "z", "]"]]]]]] |
|
|
|
|
|
|
|
|
|
|
Date Added to functions.wolfram.com (modification date)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|