data/snuggletex/28.mml
<math xmlns="http://www.w3.org/1998/Math/MathML"><msubsup><mi>σ</mi><mi>y</mi><mn>2</mn></msubsup><mfenced close=")" open="("><mi>τ</mi></mfenced><mo>=</mo><mfrac><mrow><mn>2</mn><msup><mi>π</mi><mn>2</mn></msup><mi>τ</mi></mrow><mn>3</mn></mfrac><msub><mi>h</mi><mn>-2</mn></msub></math>