| |  
 |  | 
 |  
 |  
 |  
 |  
 |  
 |  |  
 |  
 
 |  
 |  
 |  
 |  
 |  
 |  |  
 |  
 
 |  
 |  
 |  
 |  
 |  
 |  |  
 |  
 
 |  
 |  
 |  
 |  |   
 |  
 |  
 |  
 |  
 |  
 |  
 |  |  
 |  
 |  
 |  
 |  
 |  
 |  
 | | http://functions.wolfram.com/04.06.19.0007.01 | 
 |  
 |  
 |  
 |  
 |  
 |  |   
 |  
 |  |  |   
 |  
 |  
 |  
 |  
 |  
 |  
 |  |  
 |  
 |  
 |  
 |  
 |  
 |  
 | | Sign[Mod[m, n]] == Sign[n] /; Element[m, Reals] && Element[n, Reals] | 
 |  
 |  
 |  
 |  
 |  
 |  |   
 |  
 |  
 |  
 |  
 |  
 |  
 |  |  
 |  
 |  
 |  
 |  
 |  
 |  
 | | Cell[BoxData[RowBox[List[RowBox[List[RowBox[List["Sign", "[", RowBox[List["Mod", "[", RowBox[List["m", ",", "n"]], "]"]], "]"]], "\[Equal]", RowBox[List["Sign", "[", "n", "]"]]]], "/;", RowBox[List[RowBox[List["Element", "[", RowBox[List["m", ",", "Reals"]], "]"]], "\[And]", RowBox[List["Element", "[", RowBox[List["n", ",", "Reals"]], "]"]]]]]]]] | 
 |  
 |  
 |  
 |  
 |  
 |  |   
 |  
 |  
 |  
 |  
 |  
 |  
 |  |  
 |  
 |  
 |  
 |  
 |  
 |  
 |  |  
 |  
 |  
 | | 
   <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>  <semantics>  <mrow>  <mi> m </mi>  <mo> ⁢ </mo>  <mi> mod </mi>  <mo> ⁢ </mo>  <mi> n </mi>  </mrow>  <annotation-xml encoding='MathML-Content'>  <apply>  <rem />  <ci> $CellContext`m </ci>  <ci> $CellContext`n </ci>  </apply>  </annotation-xml>  </semantics>  <mo> ) </mo>  </mrow>  <mo> ⩵ </mo>  <mrow>  <mi> sgn </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mi> n </mi>  <mo> ) </mo>  </mrow>  </mrow>  <mo> /; </mo>  <mrow>  <mrow>  <mi> m </mi>  <mo> ∈ </mo>  <semantics>  <mi> ℝ </mi>  <annotation encoding='Mathematica'> TagBox["\[DoubleStruckCapitalR]", Function[Reals]] </annotation>  </semantics>  </mrow>  <mo> ∧ </mo>  <mrow>  <mi> n </mi>  <mo> ∈ </mo>  <semantics>  <mi> ℝ </mi>  <annotation encoding='Mathematica'> TagBox["\[DoubleStruckCapitalR]", Function[Reals]] </annotation>  </semantics>  </mrow>  </mrow>  </mrow>  <annotation-xml encoding='MathML-Content'>  <apply>  <ci> Condition </ci>  <apply>  <eq />  <apply>  <ci> Sign </ci>  <apply>  <rem />  <ci> $CellContext`m </ci>  <ci> $CellContext`n </ci>  </apply>  </apply>  <apply>  <ci> Sign </ci>  <ci> n </ci>  </apply>  </apply>  <apply>  <and />  <apply>  <in />  <ci> m </ci>  <reals />  </apply>  <apply>  <in />  <ci> n </ci>  <reals />  </apply>  </apply>  </apply>  </annotation-xml>  </semantics>  </math> 
   | 
 |  
 |  
 |  
 |  
 |  
 |  |  
 |  |  
 |  
 |  
 |  |  
 |  |  
 |  |  
 |  
 |  
 |  |  
 | | Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", RowBox[List["Sign", "[", RowBox[List["Mod", "[", RowBox[List["m_", ",", "n_"]], "]"]], "]"]], "]"]], "\[RuleDelayed]", RowBox[List[RowBox[List["Sign", "[", "n", "]"]], "/;", RowBox[List[RowBox[List["m", "\[Element]", "Reals"]], "&&", RowBox[List["n", "\[Element]", "Reals"]]]]]]]]]] | 
 |  
 |   
 |  
 |  
 | |   
 |  
 |  
 |  
 |  
 |  
 |  
 | | Date Added to functions.wolfram.com (modification date) | 
 |  
 |  
 |  
 |  
 |  
 |  
 |  
 |  |  
 |   
 |  
 |  
 |  |  | 
 
 
 | 
 |