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Modulated

The Modulated amplitude defines the following functions.

A(t)=A0Πi=1nsin(2πωi(tt0))fort>t0.

In the above definition, t0 is the (pseudo) start time of the step in which the amplitude is defined, ωi is the circular frequency.

Syntax

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amplitude Modulated (1) (2) (3) [(4)...]
# (1) int, unique tag
# (2) double, base amplitude A_0
# (3) double, first frequency \omega_0
# [(4)...] double, optional frequencies for higher modes