Page 757 - Handbook Of Integral Equations
P. 757

∞
                                                                     ˇ
                 No       Original function, f(x)      Sine transform, f s (u)=  f(x) sin(ux) dx
                                                                           0
                        1                             1        π
                 10         ,  a >0                     –
                      e ax  +1                       2u   2a sinh(πu/a)
                        1                            π        πu     1
                 11         ,  a >0                     coth     –
                      e ax  – 1                      2a      a     2u
                       e x/2                          1
                 12                                  – tanh(πu)
                                                      2
                       x
                      e – 1
                                                      √           2

                 13   x exp –ax 2                      π  u exp –  u
                                                     4a 3/2      4a
                      1        2                     π      u
                 14     exp –ax                        erf  √
                      x                              2     2 a
                       1       a                        π  √        √          √
                 15   √ exp –                             e – 2au  cos  2au + sin  2au
                        x      x                       2u
                       1        a                       π  √      √
                 16    √ exp –                           e – 2au  sin  2au
                      x x       x                      a



               7.4. Expressions With Hyperbolic Functions

                                                                            ∞

                                                                     ˇ
                 No       Original function, f(x)      Sine transform, f s (u)=  f(x) sin(ux) dx
                                                                           0
                         1                           π        1  –1
                  1          ,  a >0                    tanh  2 πa u
                      sinh(ax)                       2a
                                                       2
                                                                –1
                         x                            π sinh   1 2  πa u
                  2          ,  a >0
                      sinh(ax)                       4a cosh 2 1  πa u
                                                       2
                                                                 –1
                                                              2
                      1  –bx                         1          2au
                  3    e   sinh(ax),  b > |a|         arctan
                                                                  2
                                                              2
                      x                              2       u + b – a 2
                          1                                       –1
                  4            ,  a >0               arctan sinh  1 2  πa u
                      x cosh(ax)
                                                     1        π
                              1
                  5   1 – tanh  2  ax ,  a >0        u  –  a sinh πa u
                                                                 –1

                                                     π             1
                            1                                 –1
                  6   coth  2  ax – 1,  a >0           coth πa u –
                                                     a             u
                                                                    –1
                      cosh(ax)                       π       sinh πb u
                  7          ,  |a| < b                       –1         –1
                      sinh(bx)                       2b cos πab  + cosh πb u
                                                           1   –1        1  –1
                      sinh(ax)                       π sin  2  πab  sinh  2  πb u
                  8          ,  |a| < b
                      cosh(bx)                       b cos πab –1  + cosh πb u
                                                                         –1
                 © 1998 by CRC Press LLC









               © 1998 by CRC Press LLC
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