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 UnitStep

 http://functions.wolfram.com/14.02.19.0005.01

 Input Form

 Conjugate[UnitStep[Subscript[x, 1], Subscript[x, 2], \[Ellipsis], Subscript[x, n]]] == UnitStep[Subscript[x, 1], Subscript[x, 2], \[Ellipsis], Subscript[x, n]]

 Standard Form

 Cell[BoxData[RowBox[List[RowBox[List["Conjugate", "[", RowBox[List["UnitStep", "[", RowBox[List[SubscriptBox["x", "1"], ",", SubscriptBox["x", "2"], ",", "\[Ellipsis]", ",", SubscriptBox["x", "n"]]], "]"]], "]"]], "\[Equal]", RowBox[List["UnitStep", "[", RowBox[List[SubscriptBox["x", "1"], ",", SubscriptBox["x", "2"], ",", "\[Ellipsis]", ",", SubscriptBox["x", "n"]]], "]"]]]]]]

 MathML Form

 θ UnitStep ( x 1 , x 2 , , x n ) _ θ UnitStep ( x 1 , x 2 , , x n ) OverBar UnitStep Subscript x 1 Subscript x 2 Subscript x n UnitStep Subscript x 1 Subscript x 2 Subscript x n [/itex]

 Rule Form

 Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", RowBox[List["Conjugate", "[", RowBox[List["UnitStep", "[", RowBox[List[SubscriptBox["x_", "1"], ",", SubscriptBox["x_", "2"], ",", "\[Ellipsis]_", ",", SubscriptBox["x_", "n_"]]], "]"]], "]"]], "]"]], "\[RuleDelayed]", RowBox[List["UnitStep", "[", RowBox[List[SubscriptBox["xx", "1"], ",", SubscriptBox["xx", "2"], ",", "\[Ellipsis]", ",", SubscriptBox["xx", "n"]]], "]"]]]]]]

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

 2001-10-29