Alternative Equation Formats

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MathML

π_{1} - π_{2} = \frac{1}{1 + \exp {- τ_{1}}} - \frac{1}{1 + \exp {- τ_{2}}}

π_{1} - π_{2} = \frac{1}{1 + \exp {- τ_{1}}} - \frac{1}{1 + \exp {- τ_{2}}}

\[ \pi _1 - \pi _2 = \frac{1}{1+\exp \{ -\tau _1\} } - \frac{1}{1+\exp \{ -\tau _2\} } \]