help debug

help debug
Debugging commands.

dbstop - Set breakpoint.
dbclear - Remove breakpoint.
dbcont - Resume execution.
dbdown - Change local workspace context.
dbmex - Enable MEX-file debugging.
dbstack - List who called whom.
dbstatus - List all breakpoints.
dbstep - Execute one or more lines.
dbtype - List M-file with line numbers.
dbup - Change local workspace context.
dbquit - Quit debug mode.

When a breakpoint is hit, MATLAB goes into debug mode, the debugger
window becomes active, and the prompt changes to a K>>. Any MATLAB
command is allowed at the prompt.

To resume M-file function execution, use DBCONT or DBSTEP.
To exit from the debugger use DBQUIT.

Reference page in Help browser
doc debug