MATLAB: Does SISOTOOL not work when a function named arrow.m is in the MATLAB path in the Control System Toolbox 5.1 (R12.1)

arrowControl System Toolboxsisotool

Why does SISOTOOL not work when a function named arrow.m is in my MATLAB path in the Control System Toolbox 5.1 (R12.1)?
Reproduction Steps:
1. Create a function called arrow.
2. Save the function in your MATLAB path
3. Type 'sisotool' in the MATLAB command window
The following error results:
 ??? Error using ==> arrow
 Too many output arguments.
 Error in ==> C:\MATLAB6p1\toolbox\control\control\sisotool.m
 On line 215  ==> sisodb.addcontrols;

Best Answer

This bug has been in MATLAB R13, Control Systems Toolbox version 5.2.
If you are using MATLAB R12.1, there are currently no known workarounds.
Related Question