limit :
A limiting operator for xreal-typed signals.

The limit primitive produces a bounded range of output by limiting the input signal in to the range specified by the parameters upper_limit and lower_limit. In other words, the output signal out is set according to the following equation:

    out = lower_limit   for in < lower_limit
          in            for lower_limit <= in < upper_limit
          upper_limit   for in >= upper_limit

To pose the lower limit only, the parameter upper_limit can be set to `INFINITY. Similarly, the pose the upper limit only, the parameter lower_limit can be set to -`INFINITY.

Input/Output Terminals

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

Parameters

Name	Type	Default	Unit	Description
upper_limit	real	1.0	None	upper-limit level
lower_limit	real	-1.0	None	lower-limit level