1<?xml version='1.0'?> 2<!DOCTYPE html PUBLIC '-//W3C//DTD XHTML 1.1 plus MathML 2.0//EN' 3 'http://www.w3.org/TR/MathML2/dtd/xhtml-math11-f.dtd' 4 [<!ENTITY mathml 'http://www.w3.org/1998/Math/MathML'>]> 5<html xmlns='http://www.w3.org/1999/xhtml'> 6<head><title>airy</title> 7<!-- MathML created with MathCast Equation Editor version 0.89 --> 8</head> 9<body> 10<math xmlns="http://www.w3.org/1998/Math/MathML" display="block"> 11 <mrow> 12 <mfrac> 13 <mrow> 14 <msup> 15 <mo>ⅆ</mo> 16 <mn>2</mn> 17 </msup> 18 <mi>w</mi> 19 </mrow> 20 <mrow> 21 <mo>ⅆ</mo> 22 <msup> 23 <mi>z</mi> 24 <mn>2</mn> 25 </msup> 26 </mrow> 27 </mfrac> 28 <mo>=</mo> 29 <mi>z</mi> 30 <mi>w</mi> 31 <mspace width="1em"/> 32 <mo>;</mo> 33 <mspace width="1em"/> 34 <mi>w</mi> 35 <mo>=</mo> 36 <mi>A</mi> 37 <mi>i</mi> 38 <mfenced> 39 <mrow> 40 <mi>z</mi> 41 </mrow> 42 </mfenced> 43 <mo>,</mo> 44 <mi>B</mi> 45 <mi>i</mi> 46 <mfenced> 47 <mrow> 48 <mi>z</mi> 49 </mrow> 50 </mfenced> 51 <mo>,</mo> 52 <mi>A</mi> 53 <mi>i</mi> 54 <mfenced> 55 <mrow> 56 <mi>z</mi> 57 <msup> 58 <mi>ⅇ</mi> 59 <mrow> 60 <mo>±</mo> 61 <mfrac> 62 <mrow> 63 <mn>2</mn> 64 <mi>π</mi> 65 <mi>ⅈ</mi> 66 </mrow> 67 <mn>3</mn> 68 </mfrac> 69 </mrow> 70 </msup> 71 </mrow> 72 </mfenced> 73 </mrow> 74</math> 75</body> 76</html> 77