dbstepcommand allows you to debug an M-file function by following its execution from the current breakpoint. At a breakpoint, the
dbstepcommand steps through execution of the current M-file function one line at a time or at the rate specified by
dbstep executes the next executable line of the current M-file is executed.
nlines executes the specified number of executable lines.
in when the next executable line is a call to another M-file function, and you want to step to the first executable line of the called function.
(c) Copyright 1994 by The MathWorks, Inc.