Complex.hasDerivAt_cosh

∀ (x : ℂ), HasDerivAt Complex.cosh (Complex.sinh x) x

The complex hyperbolic cosine function is everywhere differentiable, with the derivative sinh x.

Defined in: Mathlib.Analysis.SpecialFunctions.Trigonometric.DerivHyp
Cited by: 7 results in Mathlib
Foundations: Depth 202 from the axioms · uses propext, Classical.choice, Quot.sound

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