The operator can be placed on the canvas by clicking on its icon
on
the widget bar.
A switch block (also known as a case block, or select in the Fortran
world) is a way of selecting from a range of alternatives according
to the value of the input, effectively defining a piecewise function.
An example switch block with 3 cases
The default switch has two cases, and can be used to implement an if/then/else construct. However, because the two cases are 0 and 1, or false and true, a two case switch statement will naturally appear ``upside down'' to how you might think of an if statement. In other words, it looks like:
You can add or remove cases through the context menu.