1<?xml version="1.0" encoding="UTF-8"?> 2<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1 plus MathML 2.0//EN" "http://www.w3.org/TR/MathML2/dtd/xhtml-math11-f.dtd" [<!ENTITY mathml 'http://www.w3.org/1998/Math/MathML'>]> 3<html xmlns="http://www.w3.org/1999/xhtml"> 4<head><title>hyper_1f1</title> 5<!-- MathML created with MathCast Equation Editor version 0.92 --> 6</head> 7<body> 8<math xmlns="http://www.w3.org/1998/Math/MathML" display="block"> 9 <mrow> 10 <msub> 11 <mi/> 12 <mn>1</mn> 13 </msub> 14 <msub> 15 <mi>F</mi> 16 <mn>1</mn> 17 </msub> 18 <mfenced> 19 <mrow> 20 <mi>a</mi> 21 <mo>;</mo> 22 <mi>b</mi> 23 <mo>;</mo> 24 <mi>z</mi> 25 </mrow> 26 </mfenced> 27 <mo>=</mo> 28 <munderover> 29 <mo>∑</mo> 30 <mrow> 31 <mi>k</mi> 32 <mo>=</mo> 33 <mn>1</mn> 34 </mrow> 35 <mi>∞</mi> 36 </munderover> 37 <mfrac> 38 <mrow> 39 <msub> 40 <mfenced> 41 <mrow> 42 <mi>a</mi> 43 </mrow> 44 </mfenced> 45 <mi>k</mi> 46 </msub> 47 <msup> 48 <mi>z</mi> 49 <mi>k</mi> 50 </msup> 51 </mrow> 52 <mrow> 53 <msub> 54 <mfenced> 55 <mrow> 56 <mi>b</mi> 57 </mrow> 58 </mfenced> 59 <mi>k</mi> 60 </msub> 61 <mi>k</mi> 62 <mo>!</mo> 63 </mrow> 64 </mfrac> 65 </mrow> 66</math></body> 67</html>