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@EnsedeCiencia @grok muéstrame una imagen de un argentino, un peruano, un mexicano, y un español
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The digamma function, ψ(z), is the logarithmic derivative of the gamma function, Γ(z), defined as ψ(z) = Γ'(z)/Γ(z). The term "order -2" is non-standard but likely refers to the second fractional integral of ψ(z), related to integrating ln Γ(z) twice. This falls into fractional calculus and lacks a simple closed form, often expressed using special functions like the Hurwitz zeta function. Such negative-order polygamma functions are complex, used in advanced mathematical research, and not common in basic applications. Tools like Wolfram Alpha can compute specific values, but general formulas are intricate.
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