hyperbolic secant function
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21—30 of 32 matching pages
21: 10.24 Functions of Imaginary Order
22: 22.11 Fourier and Hyperbolic Series
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22.11.14
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23: 4.38 Inverse Hyperbolic Functions: Further Properties
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4.38.13
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24: 10.32 Integral Representations
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10.32.7
, .
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25: 4.45 Methods of Computation
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Hyperbolic and Inverse Hyperbolic Functions
►The hyperbolic functions can be computed directly from the definitions (4.28.1)–(4.28.7). The inverses , , and can be computed from the logarithmic forms given in §4.37(iv), with real arguments. For , , and we have (4.37.7)–(4.37.9). … ►Similarly for the hyperbolic and inverse hyperbolic functions; compare (4.28.1)–(4.28.7), §4.37(iv), and (4.37.7)–(4.37.9). …26: 22.19 Physical Applications
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§22.19(i) Classical Dynamics: The Pendulum
… ►Both the and solutions approach as from the appropriate directions. ►§22.19(iii) Nonlinear ODEs and PDEs
… ►§22.19(v) Other Applications
… ►27: 19.23 Integral Representations
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19.23.1
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19.23.4
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19.23.5
, ,
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►Also, in (19.23.8) and (19.23.10) denotes the beta function (§5.12).
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19.23.8
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28: 4.15 Graphics
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§4.15(i) Real Arguments
… ►§4.15(iii) Complex Arguments: Surfaces
►In the graphics shown in this subsection height corresponds to the absolute value of the function and color to the phase. … ►The corresponding surfaces for , , and are similar. … ►The corresponding surfaces for , , can be visualized from Figures 4.15.9, 4.15.11, 4.15.13 with the aid of equations (4.23.16)–(4.23.18).29: 10.43 Integrals
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§10.43(i) Indefinite Integrals
… ►§10.43(iii) Fractional Integrals
… ► … ► … ►The Kontorovich–Lebedev transform of a function is defined as …30: 1.14 Integral Transforms
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►The Fourier transform of a real- or complex-valued function
is defined by
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►Suppose is a real- or complex-valued function and is a real or complex parameter.
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