@Tracing()
@Tracing(x:function, ...)
@Tracing(x:string, ...)
@Tracing(x:tab, ...)

Calling @Tracing starts to trace the calls to all functions specified by the arguments. Functions to trace are given by their name (as a string) or by their value (through their identifier) or by a tab containing such values.

With no argument, all user-defined function are traced.

See also @UnTracing and system related functions: @arch_darwin,    @arch_linux,    @arch_windows,    @dumpvar,    @exe_child_of,    @exe_parent,    @gnuplot,    @history_length,    @loadvalue,    @loadvar,    @plot,    @rplot,    @savevalue,    @set_osc_handling_double,    @set_osc_handling_int64,    @set_osc_handling_tab,    @specified_duration,    @string2fun,    @string2obj,    @string2proc,    @system