parameter description default value units vo offset volts or amps vp peak amplitude volts or amps per period tstop seconds td delay 0.0 seconds decay decay const 0.0 1/seconds
The shape of the waveform is described by the following table:
time value 0 vo td vo + 0.5 . (vp-vo)( 1 - cos(2 . (time-td)/per) . exp(-(time-td) . decay) )
This function applies only to transient analysis, where time is the running variable. When referring to default values, tstep is the printing increment and tstop is the final time in transient analysis, see 2.7.9 for explanation.