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http://functions.wolfram.com/06.05.29.0006.01
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(x/E)^(x - 1) <= Gamma[x] <= (x/2)^(x - 1) /; Element[x, Reals] && x >= 2
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Cell[BoxData[RowBox[List[RowBox[List[SuperscriptBox[RowBox[List["(", FractionBox["x", "\[ExponentialE]"], ")"]], RowBox[List["x", "-", "1"]]], "\[LessEqual]", RowBox[List["Gamma", "[", "x", "]"]], "\[LessEqual]", SuperscriptBox[RowBox[List["(", FractionBox["x", "2"], ")"]], RowBox[List["x", "-", "1"]]]]], "/;", RowBox[List[RowBox[List["x", "\[Element]", "Reals"]], "\[And]", RowBox[List["x", "\[GreaterEqual]", "2", " "]]]]]]]]
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<math xmlns='http://www.w3.org/1998/Math/MathML' mathematica:form='TraditionalForm' xmlns:mathematica='http://www.wolfram.com/XML/'> <semantics> <mrow> <mrow> <msup> <mrow> <mo> ( </mo> <mfrac> <mi> x </mi> <mi> ⅇ </mi> </mfrac> <mo> ) </mo> </mrow> <mrow> <mi> x </mi> <mo> - </mo> <mn> 1 </mn> </mrow> </msup> <mo> ≤ </mo> <mrow> <mi> Γ </mi> <mo> ⁡ </mo> <mo> ( </mo> <mi> x </mi> <mo> ) </mo> </mrow> <mo> ≤ </mo> <mo> ≤ </mo> <msup> <mrow> <mo> ( </mo> <mfrac> <mi> x </mi> <mn> 2 </mn> </mfrac> <mo> ) </mo> </mrow> <mrow> <mi> x </mi> <mo> - </mo> <mn> 1 </mn> </mrow> </msup> </mrow> <mo> /; </mo> <mrow> <mrow> <mi> x </mi> <mo> ∈ </mo> <mi> ℝ </mi> </mrow> <mo> ∧ </mo> <mrow> <mi> x </mi> <mo> ≥ </mo> <mn> 2 </mn> </mrow> </mrow> </mrow> <annotation-xml encoding='MathML-Content'> <mrow> <mrow> <msup> <mrow> <mo> ( </mo> <mfrac> <mi> x </mi> <mi> ⅇ </mi> </mfrac> <mo> ) </mo> </mrow> <mrow> <mi> x </mi> <mo> - </mo> <mn> 1 </mn> </mrow> </msup> <mo> ≤ </mo> <mrow> <mi> Γ </mi> <mo> ⁡ </mo> <mo> ( </mo> <mi> x </mi> <mo> ) </mo> </mrow> <mo> ≤ </mo> <mo> ≤ </mo> <msup> <mrow> <mo> ( </mo> <mfrac> <mi> x </mi> <mn> 2 </mn> </mfrac> <mo> ) </mo> </mrow> <mrow> <mi> x </mi> <mo> - </mo> <mn> 1 </mn> </mrow> </msup> </mrow> <mo> /; </mo> <mrow> <mrow> <mi> x </mi> <mo> ∈ </mo> <mi> ℝ </mi> </mrow> <mo> ∧ </mo> <mrow> <mi> x </mi> <mo> ≥ </mo> <mn> 2 </mn> </mrow> </mrow> </mrow> </annotation-xml> </semantics> </math>
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| Cell[BoxData[RowBox[List[RowBox[List[SuperscriptBox[RowBox[List["(", FractionBox["x", "\[ExponentialE]"], ")"]], RowBox[List["x", "-", "1"]]], "\[LessEqual]", RowBox[List["Gamma", "[", "x", "]"]], "\[LessEqual]", SuperscriptBox[RowBox[List["(", FractionBox["x", "2"], ")"]], RowBox[List["x", "-", "1"]]]]], "/;", RowBox[List[RowBox[List["x", "\[Element]", "Reals"]], "&&", RowBox[List["x", "\[GreaterEqual]", "2"]]]]]]]] |
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Date Added to functions.wolfram.com (modification date)
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