Showing content from https://dlmf.nist.gov/4.36 below:
§4.36 Infinite Products and Partial Fractions ⣠Hyperbolic Functions ⣠Chapter 4 Elementary Functions
§4.36 Infinite Products and Partial Fractions â
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Keywords:
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hyperbolic functions, infinite products, partial fractions
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Notes:
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Replace z by i ⢠z in §4.22.
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Permalink:
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http://dlmf.nist.gov/4.36
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See also:
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Annotations for Ch.4
4.36.1 sinh â¡ z = z ⢠â n = 1 â ( 1 + z2 n2 ⢠Ï2 ) , â
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Symbols:
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Ï : the ratio of the circumference of a circle to its diameter, sinh â¡ z : hyperbolic sine function, n : integer and z : complex variable
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A&S Ref:
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4.5.68
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Permalink:
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http://dlmf.nist.gov/4.36.E1
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Encodings:
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Annotations for §4.36 and Ch.4
4.36.2 cosh â¡ z = â n = 1 â ( 1 + 4 ⢠z2 ( 2 ⢠n â 1 ) 2 ⢠Ï2 ) . â
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Symbols:
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Ï : the ratio of the circumference of a circle to its diameter, cosh â¡ z : hyperbolic cosine function, n : integer and z : complex variable
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A&S Ref:
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4.5.69
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Permalink:
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http://dlmf.nist.gov/4.36.E2
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Encodings:
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Annotations for §4.36 and Ch.4
When z â n â¢ Ï â¢ i , n â ⤠,
4.36.3 coth â¡ z = 1 z + 2 ⢠z ⢠â n = 1 â 1 z2 + n2 ⢠Ï2 , â
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Symbols:
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Ï : the ratio of the circumference of a circle to its diameter, coth â¡ z : hyperbolic cotangent function, n : integer and z : complex variable
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Permalink:
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http://dlmf.nist.gov/4.36.E3
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Encodings:
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Annotations for §4.36 and Ch.4
4.36.4 csch2 â¡ z = â n = â â â 1 ( z â n â¢ Ï â¢ i ) 2 , â
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Symbols:
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Ï : the ratio of the circumference of a circle to its diameter, csch â¡ z : hyperbolic cosecant function, i : imaginary unit, n : integer and z : complex variable
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Permalink:
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http://dlmf.nist.gov/4.36.E4
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Encodings:
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Annotations for §4.36 and Ch.4
4.36.5 csch â¡ z = 1 z + 2 ⢠z ⢠â n = 1 â ( â 1 ) n z2 + n2 ⢠Ï2 . â
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Symbols:
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Ï : the ratio of the circumference of a circle to its diameter, csch â¡ z : hyperbolic cosecant function, n : integer and z : complex variable
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Permalink:
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http://dlmf.nist.gov/4.36.E5
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Encodings:
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TeX, pMML, png
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See also:
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Annotations for §4.36 and Ch.4
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