<math xmlns="http://www.w3.org/1998/Math/MathML" display="block"> | |
<mrow> | |
<msqrt> | |
<mrow> | |
<mfrac> | |
<mrow> | |
<mfenced> | |
<mrow> | |
<mi>N</mi> | |
<mo>−</mo> | |
<mn>1</mn> | |
</mrow> | |
</mfenced> | |
<msup> | |
<mi>s</mi> | |
<mn>2</mn> | |
</msup> | |
</mrow> | |
<mrow> | |
<msubsup> | |
<mi>χ</mi> | |
<mrow> | |
<mfenced> | |
<mrow> | |
<mfrac> | |
<mi>α</mi> | |
<mn>2,</mn> | |
</mfrac> | |
<mi>N</mi> | |
<mo>−</mo> | |
<mn>1</mn> | |
</mrow> | |
</mfenced> | |
</mrow> | |
<mn>2</mn> | |
</msubsup> | |
</mrow> | |
</mfrac> | |
</mrow> | |
</msqrt> | |
<mspace width="1em"/> | |
<mo>≤</mo> | |
<mspace width="1em"/> | |
<mi>σ</mi> | |
<mspace width="1em"/> | |
<mo>≤</mo> | |
<mspace width="1em"/> | |
<msqrt> | |
<mrow> | |
<mfrac> | |
<mrow> | |
<mfenced> | |
<mrow> | |
<mi>N</mi> | |
<mo>−</mo> | |
<mn>1</mn> | |
</mrow> | |
</mfenced> | |
<msup> | |
<mi>s</mi> | |
<mn>2</mn> | |
</msup> | |
</mrow> | |
<mrow> | |
<msubsup> | |
<mi>χ</mi> | |
<mrow> | |
<mfenced> | |
<mrow> | |
<mn>1</mn> | |
<mo>−</mo> | |
<mfrac> | |
<mi>α</mi> | |
<mn>2,</mn> | |
</mfrac> | |
<mi>N</mi> | |
<mo>−</mo> | |
<mn>1</mn> | |
</mrow> | |
</mfenced> | |
</mrow> | |
<mn>2</mn> | |
</msubsup> | |
</mrow> | |
</mfrac> | |
</mrow> | |
</msqrt> | |
</mrow> | |
</math> | |