data/mathtoweb/195.mml
<math xmlns="http://www.w3.org/1998/Math/MathML"><mrow><msub><mi>θ</mi><mn>3</mn></msub><mrow><mo rspace="0.3em" lspace="0em" stretchy="true" fence="true" form="prefix">(</mo><mi>π</mi><mi>z</mi><mo>|</mo><mi>τ</mi><mo rspace="0em" lspace="0.3em" stretchy="true" fence="true" form="postfix">)</mo></mrow><mo>=</mo><msub><mi>θ</mi><mn>3</mn></msub><mrow><mo rspace="0.3em" lspace="0em" stretchy="true" fence="true" form="prefix">(</mo><mn>0</mn><mo>|</mo><mi>τ</mi><mo rspace="0em" lspace="0.3em" stretchy="true" fence="true" form="postfix">)</mo></mrow><mi>exp</mi><mrow><mo rspace="0.3em" lspace="0em" stretchy="true" fence="true" form="prefix">(</mo><mo>-</mo><mstyle displaystyle="true"><munderover><mo>∑</mo><mrow><mi>j</mi><mo>=</mo><mn>1</mn></mrow><mo>∞</mo></munderover></mstyle><mfrac linethickness="1"><mn>1</mn><mrow><mn>2</mn><mi>j</mi></mrow></mfrac><msub><mi>β</mi><mrow><mn>2</mn><mi>j</mi></mrow></msub><mo form="prefix">(</mo><mi>τ</mi><mo form="postfix">)</mo><msup><mi>z</mi><mrow><mn>2</mn><mi>j</mi></mrow></msup><mo rspace="0em" lspace="0.3em" stretchy="true" fence="true" form="postfix">)</mo></mrow></mrow></math>