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Trigamma Function: Polygamma Function, Digamma Function, Hurwitz Zeta Function -

English
2026-03-19
€179.62 €224.53

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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. In mathematics, the trigamma function, denoted ¿1(z), is the second of the polygamma functions, and is defined by psi_1(z) = frac{d^2}{dz^2} lnGamma(z). It follows from this definition that psi_1(z) = frac{d}{dz} psi(z) where ¿(z) is the digamma function. It may also be defined as ... Full description

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Description

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. In mathematics, the trigamma function, denoted ¿1(z), is the second of the polygamma functions, and is defined by psi_1(z) = frac{d^2}{dz^2} lnGamma(z). It follows from this definition that psi_1(z) = frac{d}{dz} psi(z) where ¿(z) is the digamma function. It may also be defined as the sum of the series psi_1(z) = sum_{n = 0}^{infty}frac{1}{(z + n)^2}, making it a special case of the Hurwitz zeta function ¿1(z) = ¿(2,z). Note that the last two formulæ are valid when 1-z is not a natural number.

More Information

Publisher OmniScriptum
Release year 2026
Cover type Softcover
EAN 9786131141614
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€179.62 €224.53