ceph/src/boost/libs/math/doc/equations/digamma1.mml

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   6         <mi>x</mi>
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  10     <mo>=</mo>
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  13       <mi>d</mi>
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  15         <mi>d</mi>
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  19     <mi>ln</mi>
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  31     <mo>=</mo>
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  40           <mrow>
  41             <mi>x</mi>
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  49             <mi>x</mi>
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  53     </mfrac>
  54   </mrow>
  55 </math>
  56