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http://functions.wolfram.com/07.33.03.0647.01
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HypergeometricU[4, -6, z] == (1/21772800)
(4320 +
z (-2880 +
z (1440 + z (-720 + z (420 + z (-336 + z (504 + z (242 +
z (29 + z)))))))) + E^z z^7 (720 + z (270 + z (30 + z)))
(CoshIntegral[z] - SinhIntegral[z]))
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Cell[BoxData[RowBox[List[RowBox[List["HypergeometricU", "[", RowBox[List["4", ",", RowBox[List["-", "6"]], ",", "z"]], "]"]], "\[Equal]", RowBox[List[FractionBox["1", "21772800"], RowBox[List["(", RowBox[List["4320", "+", RowBox[List["z", " ", RowBox[List["(", RowBox[List[RowBox[List["-", "2880"]], "+", RowBox[List["z", " ", RowBox[List["(", RowBox[List["1440", "+", RowBox[List["z", " ", RowBox[List["(", RowBox[List[RowBox[List["-", "720"]], "+", RowBox[List["z", " ", RowBox[List["(", RowBox[List["420", "+", RowBox[List["z", " ", RowBox[List["(", RowBox[List[RowBox[List["-", "336"]], "+", RowBox[List["z", " ", RowBox[List["(", RowBox[List["504", "+", RowBox[List["z", " ", RowBox[List["(", RowBox[List["242", "+", RowBox[List["z", " ", RowBox[List["(", RowBox[List["29", "+", "z"]], ")"]]]]]], ")"]]]]]], ")"]]]]]], ")"]]]]]], ")"]]]]]], ")"]]]]]], ")"]]]]]], ")"]]]], "+", RowBox[List[SuperscriptBox["\[ExponentialE]", "z"], " ", SuperscriptBox["z", "7"], " ", RowBox[List["(", RowBox[List["720", "+", RowBox[List["z", " ", RowBox[List["(", RowBox[List["270", "+", RowBox[List["z", " ", RowBox[List["(", RowBox[List["30", "+", "z"]], ")"]]]]]], ")"]]]]]], ")"]], " ", RowBox[List["(", RowBox[List[RowBox[List["CoshIntegral", "[", "z", "]"]], "-", RowBox[List["SinhIntegral", "[", "z", "]"]]]], ")"]]]]]], ")"]]]]]]]]
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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> <semantics> <mi> U </mi> <annotation encoding='Mathematica'> TagBox["U", HypergeometricU] </annotation> </semantics> <mo> ( </mo> <mrow> <mn> 4 </mn> <mo> , </mo> <mrow> <mo> - </mo> <mn> 6 </mn> </mrow> <mo> , </mo> <mi> z </mi> </mrow> <mo> ) </mo> </mrow> <mo>  </mo> <mrow> <mfrac> <mn> 1 </mn> <mn> 21772800 </mn> </mfrac> <mo> ⁢ </mo> <mrow> <mo> ( </mo> <mrow> <mrow> <msup> <mi> ⅇ </mi> <mi> z </mi> </msup> <mo> ⁢ </mo> <mrow> <mo> ( </mo> <mrow> <mrow> <mi> z </mi> <mo> ⁢ </mo> <mrow> <mo> ( </mo> <mrow> <mrow> <mi> z </mi> <mo> ⁢ </mo> <mrow> <mo> ( </mo> <mrow> <mi> z </mi> <mo> + </mo> <mn> 30 </mn> </mrow> <mo> ) </mo> </mrow> </mrow> <mo> + </mo> <mn> 270 </mn> </mrow> <mo> ) </mo> </mrow> </mrow> <mo> + </mo> <mn> 720 </mn> </mrow> <mo> ) </mo> </mrow> <mo> ⁢ </mo> <mrow> <mo> ( </mo> <mrow> <mrow> <mi> Chi </mi> <mo> ⁡ </mo> <mo> ( </mo> <mi> z </mi> <mo> ) </mo> </mrow> <mo> - </mo> <mrow> <mi> Shi </mi> <mo> ⁡ </mo> <mo> ( </mo> <mi> z </mi> <mo> ) </mo> </mrow> </mrow> <mo> ) </mo> </mrow> <mo> ⁢ </mo> <msup> <mi> z </mi> <mn> 7 </mn> </msup> </mrow> <mo> + </mo> <mrow> <mrow> <mo> ( </mo> <mrow> <mrow> <mi> z </mi> <mo> ⁢ </mo> <mrow> <mo> ( </mo> <mrow> <mrow> <mi> z </mi> <mo> ⁢ </mo> <mrow> <mo> ( </mo> <mrow> <mrow> <mi> z </mi> <mo> ⁢ </mo> <mrow> <mo> ( </mo> <mrow> <mrow> <mi> z </mi> <mo> ⁢ </mo> <mrow> <mo> ( </mo> <mrow> <mrow> <mi> z </mi> <mo> ⁢ </mo> <mrow> <mo> ( </mo> <mrow> <mrow> <mi> z </mi> <mo> ⁢ </mo> <mrow> <mo> ( </mo> <mrow> <mrow> <mi> z </mi> <mo> ⁢ </mo> <mrow> <mo> ( </mo> <mrow> <mi> z </mi> <mo> + </mo> <mn> 29 </mn> </mrow> <mo> ) </mo> </mrow> </mrow> <mo> + </mo> <mn> 242 </mn> </mrow> <mo> ) </mo> </mrow> </mrow> <mo> + </mo> <mn> 504 </mn> </mrow> <mo> ) </mo> </mrow> </mrow> <mo> - </mo> <mn> 336 </mn> </mrow> <mo> ) </mo> </mrow> </mrow> <mo> + </mo> <mn> 420 </mn> </mrow> <mo> ) </mo> </mrow> </mrow> <mo> - </mo> <mn> 720 </mn> </mrow> <mo> ) </mo> </mrow> </mrow> <mo> + </mo> <mn> 1440 </mn> </mrow> <mo> ) </mo> </mrow> </mrow> <mo> - </mo> <mn> 2880 </mn> </mrow> <mo> ) </mo> </mrow> <mo> ⁢ </mo> <mi> z </mi> </mrow> <mo> + </mo> <mn> 4320 </mn> </mrow> <mo> ) </mo> </mrow> </mrow> </mrow> <annotation-xml encoding='MathML-Content'> <apply> <eq /> <apply> <ci> HypergeometricU </ci> <cn type='integer'> 4 </cn> <cn type='integer'> -6 </cn> <ci> z </ci> </apply> <apply> <times /> <cn type='rational'> 1 <sep /> 21772800 </cn> <apply> <plus /> <apply> <times /> <apply> <power /> <exponentiale /> <ci> z </ci> </apply> <apply> <plus /> <apply> <times /> <ci> z </ci> <apply> <plus /> <apply> <times /> <ci> z </ci> <apply> <plus /> <ci> z </ci> <cn type='integer'> 30 </cn> </apply> </apply> <cn type='integer'> 270 </cn> </apply> </apply> <cn type='integer'> 720 </cn> </apply> <apply> <plus /> <apply> <ci> CoshIntegral </ci> <ci> z </ci> </apply> <apply> <times /> <cn type='integer'> -1 </cn> <apply> <ci> SinhIntegral </ci> <ci> z </ci> </apply> </apply> </apply> <apply> <power /> <ci> z </ci> <cn type='integer'> 7 </cn> </apply> </apply> <apply> <times /> <apply> <plus /> <apply> <times /> <ci> z </ci> <apply> <plus /> <apply> <times /> <ci> z </ci> <apply> <plus /> <apply> <times /> <ci> z </ci> <apply> <plus /> <apply> <times /> <ci> z </ci> <apply> <plus /> <apply> <times /> <ci> z </ci> <apply> <plus /> <apply> <times /> <ci> z </ci> <apply> <plus /> <apply> <times /> <ci> z </ci> <apply> <plus /> <ci> z </ci> <cn type='integer'> 29 </cn> </apply> </apply> <cn type='integer'> 242 </cn> </apply> </apply> <cn type='integer'> 504 </cn> </apply> </apply> <cn type='integer'> -336 </cn> </apply> </apply> <cn type='integer'> 420 </cn> </apply> </apply> <cn type='integer'> -720 </cn> </apply> </apply> <cn type='integer'> 1440 </cn> </apply> </apply> <cn type='integer'> -2880 </cn> </apply> <ci> z </ci> </apply> <cn type='integer'> 4320 </cn> </apply> </apply> </apply> </annotation-xml> </semantics> </math>
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Date Added to functions.wolfram.com (modification date)
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