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1: 4.37 Inverse Hyperbolic Functions
§4.37 Inverse Hyperbolic Functions
… ►The principal values of the inverse hyperbolic cosecant, hyperbolic secant, and hyperbolic tangent are given by … ►Inverse Hyperbolic Sine
… ►Inverse Hyperbolic Cosine
… ►Inverse Hyperbolic Tangent
…2: 36.2 Catastrophes and Canonical Integrals
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Normal Forms for Umbilic Catastrophes with Codimension
… ►(elliptic umbilic). …(hyperbolic umbilic). ►Canonical Integrals
… ►Addendum: For further special cases see §36.2(iv) …3: 36.4 Bifurcation Sets
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Bifurcation (Catastrophe) Set for Umbilics
… ►Elliptic umbilic bifurcation set (codimension three): for fixed , the section of the bifurcation set is a three-cusped astroid … ►Hyperbolic umbilic bifurcation set (codimension three): … ►Hyperbolic umbilic cusp line (rib): … ►§36.4(ii) Visualizations
…4: 36.5 Stokes Sets
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►Stokes sets are surfaces (codimension one) in space, across which or acquires an exponentially-small asymptotic contribution (in ), associated with a complex critical point of or .
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§36.5(iii) Umbilics
►Elliptic Umbilic Stokes Set (Codimension three)
… ►Hyperbolic Umbilic Stokes Set (Codimension three)
►This consists of a cusp-edged sheet connected to the cusp-edged sheet of the bifurcation set and intersecting the smooth sheet of the bifurcation set. …5: 36.3 Visualizations of Canonical Integrals
6: 4.35 Identities
§4.35 Identities
►§4.35(i) Addition Formulas
… ►§4.35(ii) Squares and Products
… ►§4.35(iii) Multiples of the Argument
… ►§4.35(iv) Real and Imaginary Parts; Moduli
…7: 36.1 Special Notation
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►The main functions covered in this chapter are cuspoid catastrophes ; umbilic catastrophes with codimension three , ; canonical integrals , , ; diffraction catastrophes , , generated by the catastrophes.
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