data/snuggletex/224.mml
<math xmlns="http://www.w3.org/1998/Math/MathML"><mstyle mathvariant="bold"><msup><mi>B</mi><mo>*</mo></msup><msub><mi>σ</mi><mn>3</mn></msub><mi>B</mi></mstyle><mstyle mathvariant="normal"><mo>=</mo></mstyle><mstyle mathvariant="bold"><msub><mi>σ</mi><mn>3</mn></msub></mstyle></math>