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Reference.org
Ramanujan theta function
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<p>In <a href="/facts/Mathematics/pxTouaz4">mathematics</a>, particularly <a href="/facts/Q-analog/7jXz12AP">q-analog</a> theory, the Ramanujan theta function generalizes the form of the Jacobi <a href="/facts/Theta_function/g09xvoQQ">theta functions</a>, while capturing their general properties. In particular, the <a href="/facts/Jacobi_triple_product/VXIYGemW">Jacobi triple product</a> takes on a particularly elegant form when written in terms of the Ramanujan theta. The function is named after mathematician <a href="/facts/Srinivasa_Ramanujan/HBPr4bzd">Srinivasa Ramanujan</a>. </p>