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Fungrim entry: 42c1f5

ψ ⁣(−n)=∞~\psi\!\left(-n\right) = {\tilde \infty}
Assumptions:n∈Z≥0n \in \mathbb{Z}_{\ge 0}
TeX:
\psi\!\left(-n\right) = {\tilde \infty}

n \in \mathbb{Z}_{\ge 0}
Definitions:
Fungrim symbol Notation Short description
DigammaFunctionψ ⁣(z)\psi\!\left(z\right) Digamma function
UnsignedInfinity∞~{\tilde \infty} Unsigned infinity
ZZGreaterEqualZ≥n\mathbb{Z}_{\ge n} Integers greater than or equal to n
Source code for this entry:
Entry(ID("42c1f5"),
    Formula(Equal(DigammaFunction(Neg(n)), UnsignedInfinity)),
    Variables(n),
    Assumptions(Element(n, ZZGreaterEqual(0))))

Topics using this entry

Copyright (C) Fredrik Johansson and contributors. Fungrim is provided under the MIT license. The source code is on GitHub.

2021-03-15 19:12:00.328586 UTC