Difference between revisions of "Cosine integral"
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The cosine integral is defined by | The cosine integral is defined by | ||
| − | $$\mathrm{Ci}(z) = -\displaystyle\int_z^{\infty} \dfrac{\cos t}{t} dt ; \mathrm{arg} z|<\pi.$$ | + | $$\mathrm{Ci}(z) = -\displaystyle\int_z^{\infty} \dfrac{\cos t}{t} dt ; |\mathrm{arg} z|<\pi.$$ |
Revision as of 17:06, 14 October 2014
The cosine integral is defined by $$\mathrm{Ci}(z) = -\displaystyle\int_z^{\infty} \dfrac{\cos t}{t} dt ; |\mathrm{arg} z|<\pi.$$
