POSTONEG_f — Threshold positive to negative
always active: no
direct-feedthrough: yes
zero-crossing: yes
mode: no
regular inputs:
- port 1 : size [1,1] / type 1
number/sizes of activation inputs: 0
number/sizes of activation outputs: 1
continuous-time state: no
discrete-time state: no
object discrete-time state: no
name of computational function: zcross