<math xmlns="http://www.w3.org/1998/Math/MathML" display="block"> | |
<mrow> | |
<mtext>Ei</mtext> | |
<mfenced> | |
<mrow> | |
<mi>z</mi> | |
</mrow> | |
</mfenced> | |
<mo>=</mo> | |
<mi>z</mi> | |
<mo>+</mo> | |
<mfrac> | |
<msup> | |
<mi>e</mi> | |
<mi>z</mi> | |
</msup> | |
<mi>z</mi> | |
</mfrac> | |
<mfenced> | |
<mrow> | |
<mi>c</mi> | |
<mo>+</mo> | |
<mi>R</mi> | |
<mfenced> | |
<mrow> | |
<mi>t</mi> | |
</mrow> | |
</mfenced> | |
</mrow> | |
</mfenced> | |
</mrow> | |
</math> |