View source for Cosecant

One of the [[Trigonometric functions|trigonometric functions]]:

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other notations are <img align="absmiddle" border="0" src="https://www.encyclopediaofmath.org/legacyimages/c/c026/c026610/c0266102.png" />, <img align="absmiddle" border="0" src="https://www.encyclopediaofmath.org/legacyimages/c/c026/c026610/c0266103.png" />. The domain of definition is the entire real line with the exception of the points with abscissas

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The cosecant is an unbounded odd periodic function (with period <img align="absmiddle" border="0" src="https://www.encyclopediaofmath.org/legacyimages/c/c026/c026610/c0266105.png" />). Its derivative is:

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The integral of the cosecant is:

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The series expansion is:

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====Comments====
See also [[Sine|Sine]].