WOLFRAM SYSTEM MODELER
This information is part of the Modelica Standard Library maintained by the Modelica Association.
The LogicalSwitch switches, depending on the Boolean u2 connector (the middle connector), between the two possible input signals u1 (upper connector) and u3 (lower connector).
If u2 is true, connector y is set equal to u1, else it is set equal to u3.
Switched capacitor which can represent a positive or negative resistance