devn00b
/
EQ2EMu


			
				
					
						
						
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							<?xml version='1.0'?>
<!DOCTYPE html PUBLIC '-//W3C//DTD XHTML 1.1 plus MathML 2.0//EN'
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  [<!ENTITY mathml 'http://www.w3.org/1998/Math/MathML'>]>
<html xmlns='http://www.w3.org/1999/xhtml'>
<head><title>polygamma4</title>
<!-- MathML created with MathCast Equation Editor version 0.89 -->
</head>
<body>
<math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
  <mrow>
    <msup>
      <mi>&#x03C8;</mi>
      <mrow>
        <mfenced>
          <mrow>
            <mi>n</mi>
          </mrow>
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    <mfenced>
      <mrow>
        <mi>x</mi>
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    <mo>=</mo>
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      <mrow>
        <msup>
          <mfenced>
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              <mo>&#x2212;</mo>
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            <mi>n</mi>
            <mo>&#x2212;</mo>
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        <mi>n</mi>
        <mo>!</mo>
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      <msup>
        <mi>x</mi>
        <mrow>
          <mi>n</mi>
          <mo>+</mo>
          <mn>1</mn>
        </mrow>
      </msup>
    </mfrac>
    <mo>+</mo>
    <munderover>
      <mo>&#x2211;</mo>
      <mrow>
        <mi>k</mi>
        <mo>=</mo>
        <mn>0</mn>
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      <mi>&#x221E;</mi>
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    <mfrac>
      <mrow>
        <msup>
          <mfenced>
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            <mi>k</mi>
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            <mo>+</mo>
            <mn>1</mn>
          </mrow>
        </msup>
        <mfenced>
          <mrow>
            <mi>k</mi>
            <mo>+</mo>
            <mi>n</mi>
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        </mfenced>
        <mo>!</mo>
        <mi>&#x03B6;</mi>
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            <mi>k</mi>
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        <mi>k</mi>
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  </mrow>
</math>
</body>
</html>