sin_func :
A sinusoidal function for an xreal-typed signal.

The sin_func primitive produces an xreal-typed output which is a sinusoidal function of an xreal-typed input. That is,

    out = f(in),

where the function f() can be either sin() or cos() function, depending on the parameter mode. Set the parameter mode to “sin” for sin() function and “cos” for cos() function. The parameter scale sets the additional scale factor applied to the output.

The primitive first approximates the input as a piecewise-linear (PWL) waveform before computing its sinusoidal function output. The parameters abstol and reltol set the absolute and relative tolerances of such PWL approximation, respectively.

NOTE: this primitive adds a unit timestep delay from its input to output for synchronization.

Input/Output Terminals

Name	I/O	Type	Description
out	output	xreal	output signal
in	input	xreal	input signal

Parameters

Name	Type	Default	Unit	Description
mode	string	‘sin’	None	function type (“sin” or “cos”)
scale	real	1.0	None	scale factor
abstol	real	1e-4	None	absolute tolerance for input
reltol	real	1e-2	None	relative tolerance for input