expint_n_4.mml

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<math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
  <mrow>
    <msub>
      <mi>E</mi>
      <mn>1</mn>
    </msub>
    <mfenced>
      <mrow>
        <mi>x</mi>
      </mrow>
    </mfenced>
    <mo>=</mo>
    <mi>x</mi>
    <mo>+</mo>
    <mi>log</mi>
    <mfenced>
      <mrow>
        <mi>x</mi>
      </mrow>
    </mfenced>
    <mo>+</mo>
    <mi>c</mi>
    <mo>+</mo>
    <mi>R</mi>
    <mfenced>
      <mrow>
        <mi>x</mi>
      </mrow>
    </mfenced>
  </mrow>
</math>