Linear/Ramp

The Linear amplitude increases proportionally with time so that

$$A(t)=V⟨t-t_0⟩\text{for}t>t_0.$$

The Ramp amplitude is in fact a simplified version with unit slope. It adopts unit time length no matter what the current step is and remains unity after that.

$$A(t)=\{\begin{array}{rl}⟨t-t_0⟩,& t<t_0+1,\\ 1,& t\ge t_0+1.\end{array}$$

The Ramp amplitude is the default amplitude that would be used if no valid amplitude is defined.

Syntax

amplitutde Linear (1) (2)
# (1) int, unique amplitude tag
# (2) double, slope V

amplitude Ramp (1)
# (1) int, unique amplitude tag