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variants of this functions
DiscreteDelta




Mathematica Notation

Traditional Notation









Integer Functions > DiscreteDelta[n1,n2,...] > Primary definition





http://functions.wolfram.com/04.19.02.0002.01









  


  








Input Form





DiscreteDelta[Subscript[n, 1], Subscript[n, 2], \[Ellipsis]] == 0 /; !Subscript[n, 1] == Subscript[n, 2] == \[Ellipsis] == 0








Standard Form





Cell[BoxData[RowBox[List[RowBox[List[RowBox[List["DiscreteDelta", "[", RowBox[List[SubscriptBox["n", "1"], ",", SubscriptBox["n", "2"], ",", "\[Ellipsis]"]], "]"]], "\[Equal]", "0"]], "/;", " ", RowBox[List["!", RowBox[List["(", RowBox[List[SubscriptBox["n", "1"], "\[Equal]", " ", SubscriptBox["n", "2"], "\[Equal]", "\[Ellipsis]", "\[Equal]", "0"]], ")"]]]]]]]]








MathML Form







<math xmlns='http://www.w3.org/1998/Math/MathML' mathematica:form='TraditionalForm' xmlns:mathematica='http://www.wolfram.com/XML/'> <semantics> <mrow> <mrow> <mrow> <semantics> <mi> &#948; </mi> <annotation-xml encoding='MathML-Content'> <ci> DiscreteDelta </ci> </annotation-xml> </semantics> <mo> ( </mo> <mrow> <msub> <mi> n </mi> <mn> 1 </mn> </msub> <mo> , </mo> <msub> <mi> n </mi> <mn> 2 </mn> </msub> <mo> , </mo> <mo> &#8230; </mo> </mrow> <mo> ) </mo> </mrow> <mo> &#10869; </mo> <mn> 0 </mn> </mrow> <mo> /; </mo> <mrow> <mo> &#172; </mo> <mrow> <msub> <mi> n </mi> <mn> 1 </mn> </msub> <mo> &#10869; </mo> <msub> <mi> n </mi> <mn> 2 </mn> </msub> <mo> &#10869; </mo> <mo> &#8230; </mo> <mo> &#10869; </mo> <mn> 0 </mn> </mrow> </mrow> </mrow> <annotation-xml encoding='MathML-Content'> <apply> <ci> Condition </ci> <apply> <eq /> <apply> <ci> DiscreteDelta </ci> <apply> <ci> Subscript </ci> <ci> n </ci> <cn type='integer'> 1 </cn> </apply> <apply> <ci> Subscript </ci> <ci> n </ci> <cn type='integer'> 2 </cn> </apply> <ci> &#8230; </ci> </apply> <cn type='integer'> 0 </cn> </apply> <apply> <not /> <apply> <eq /> <apply> <ci> Subscript </ci> <ci> n </ci> <cn type='integer'> 1 </cn> </apply> <apply> <ci> Subscript </ci> <ci> n </ci> <cn type='integer'> 2 </cn> </apply> <ci> &#8230; </ci> <cn type='integer'> 0 </cn> </apply> </apply> </apply> </annotation-xml> </semantics> </math>










Rule Form





Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", RowBox[List["DiscreteDelta", "[", RowBox[List[SubscriptBox["n_", "1"], ",", SubscriptBox["n_", "2"], ",", "\[Ellipsis]_"]], "]"]], "]"]], "\[RuleDelayed]", RowBox[List["0", "/;", RowBox[List["!", RowBox[List[SubscriptBox["n", "1"], "\[Equal]", SubscriptBox["n", "2"], "\[Equal]", "\[Ellipsis]", "\[Equal]", "0"]]]]]]]]]]


Date Added to functions.wolfram.com (modification date)





2001-10-29