digamma function
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1: 5.16 Sums
2: 5.1 Special Notation
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►The main functions treated in this chapter are the gamma function
, the psi function (or digamma function) , the beta function
, and the -gamma function
.
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►Alternative notations for the psi function are: (Gauss) Jahnke and Emde (1945);
Davis (1933);
Pairman (1919).
3: 5.15 Polygamma Functions
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►In particular, is the trigamma function; , , are the tetra-, penta-, and hexagamma functions respectively.
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5.15.1
,
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5.15.5
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5.15.6
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5.15.7
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4: 5.7 Series Expansions
5: 5.4 Special Values and Extrema
6: 25.1 Special Notation
7: 5.5 Functional Relations
8: 5.3 Graphics
§5.3 Graphics
… ► … ►In the graphics shown in this subsection, both the height and color correspond to the absolute value of the function. … ►9: 14.11 Derivatives with Respect to Degree or Order
10: 5.2 Definitions
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5.2.2
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