Special functions
ConceptSKOS conceptSpecial function
Sine integral $\func{Si}(z),$ $\limfunc{si}(z)$
http://libmeta.ru/thesaurus/concept/specfunc_99
Definition
$\func{Si}(z)=\int_{0}^{z}\frac{\sin t}{t}dt,$ \ \ $\func{si} (z)=-\int_{z}^{\infty }\frac{\sin t}{t}dt $
Definition article
$\func{Si}(z)=\int_{0}^{z}\frac{\sin t}{t}dt,$ \ \ $\func{si} (z)=-\int_{z}^{\infty }\frac{\sin t}{t}dt $
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