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>skew_normal_pdf</title> 7<!-- MathML created with MathCast Equation Editor version 0.9 --> 8</head> 9<body> 10<math xmlns="http://www.w3.org/1998/Math/MathML" display="block"> 11 <mrow> 12 <mi>φ</mi> 13 <mfenced> 14 <mrow> 15 <mi>x</mi> 16 </mrow> 17 </mfenced> 18 <mo>=</mo> 19 <mfrac> 20 <mn>1</mn> 21 <msqrt> 22 <mfenced> 23 <mrow> 24 <mn>2</mn> 25 <mi>π</mi> 26 </mrow> 27 </mfenced> 28 </msqrt> 29 </mfrac> 30 <msup> 31 <mi>e</mi> 32 <mo>−</mo> 33 </msup> 34 <mfrac> 35 <msup> 36 <mi>x</mi> 37 <mn>2</mn> 38 </msup> 39 <mn>2</mn> 40 </mfrac> 41 </mrow> 42</math> 43 44</body> 45</html> 46