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 Ceiling

 http://functions.wolfram.com/04.02.02.0001.01

 Input Form

 Ceiling[x] == n /; Element[x, Reals] && Element[n, Integers] && Inequality[n - 1, Less, x, LessEqual, n]

 Standard Form

 Cell[BoxData[RowBox[List[RowBox[List[RowBox[List["Ceiling", "[", "x", "]"]], "\[Equal]", "n"]], "/;", RowBox[List[RowBox[List["x", "\[Element]", "Reals"]], "\[And]", RowBox[List["n", "\[Element]", "Integers"]], "\[And]", RowBox[List[RowBox[List["n", "-", "1"]], "<", "x", "\[LessEqual]", "n"]]]]]]]]

 MathML Form

 x n /; x TagBox["\[DoubleStruckCapitalR]", Function[Reals]] n TagBox["\[DoubleStruckCapitalZ]", Function[Integers]] n - 1 < x n Condition x n x n Inequality n -1 x n [/itex]

 Rule Form

 Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", RowBox[List["Ceiling", "[", "x_", "]"]], "]"]], "\[RuleDelayed]", RowBox[List["n", "/;", RowBox[List[RowBox[List["x", "\[Element]", "Reals"]], "&&", RowBox[List["n", "\[Element]", "Integers"]], "&&", RowBox[List[RowBox[List["n", "-", "1"]], "<", "x", "\[LessEqual]", "n"]]]]]]]]]]

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

 2001-10-29

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