The select2() directive can be used as a
switch condition with two cases, as shown in
switch_example.dsp
// switch_example.dsp////// Henrik von Coler// 2020-05-28import("all.lib");// outputs 0 if x is greater 1// and 1 if x is below 0// 'l' is used as an implicit argumentsel(l,x)=select2((x>=0),0,1);process=-0.1:sel(2);