<math xmlns="http://www.w3.org/1998/Math/MathML" display="block"> | |
<mrow> | |
<mtext>beta</mtext> | |
<mfenced> | |
<mrow> | |
<mi>a</mi> | |
<mo>,</mo> | |
<mi>b</mi> | |
</mrow> | |
</mfenced> | |
<mo>=</mo> | |
<mfrac> | |
<mrow> | |
<mfenced> | |
<mrow> | |
<mi>a</mi> | |
<mo>+</mo> | |
<mi>b</mi> | |
</mrow> | |
</mfenced> | |
<mfenced> | |
<mrow> | |
<mi>a</mi> | |
<mo>+</mo> | |
<mi>b</mi> | |
<mo>+</mo> | |
<mn>1</mn> | |
</mrow> | |
</mfenced> | |
</mrow> | |
<mrow> | |
<mi>a</mi> | |
<mi>b</mi> | |
</mrow> | |
</mfrac> | |
<mtext>beta</mtext> | |
<mfenced> | |
<mrow> | |
<mi>a</mi> | |
<mo>+</mo> | |
<mn>1,</mn> | |
<mi>b</mi> | |
<mo>+</mo> | |
<mn>1</mn> | |
</mrow> | |
</mfenced> | |
</mrow> | |
</math> | |