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Amplitude (uamplitude.f)

With this subroutine the user can define an amplitude. It is triggered bythe parameter USER on the *AMPLITUDE card. The header and variable description is as follows:

          subroutine uamplitude(time,name,amplitude)
    !
    !     user subroutine uamplitude: user defined amplitude definition
    !
    !     INPUT:
    !
    !     name               amplitude name
    !     time               time at which the amplitude is to be
    !                        evaluated
    !
    !     OUTPUT:
    !
    !     amplitude          value of the amplitude at time
    !