Difference between revisions of "Chi"
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Revision as of 23:08, 11 June 2016
The hyperbolic cosine integral $\mathrm{Chi} \colon (0,\infty) \rightarrow \mathbb{R}$ is defined by the formula $$\mathrm{Chi}(z)=-\displaystyle\int_z^{\infty} \dfrac{\mathrm{cosh}(t)}{t} \mathrm{d}t,$$ where $\cosh$ denotes the hyperbolic cosine.
Graph of $\mathrm{Chi}$.
Domain coloring of $\mathrm{Chi}$.
