fplot and quiver return "Error using box"

Hello,

I keep getting this error when using the fplot and quiver functions, even when using the most simple example from the documentation.

fplot(@(x) sin(x))

Error using box
Too many input arguments.

Error in fplot (line 169)
        box(cax,'on');

[X,Y] = meshgrid(0:6,0:6);
U = 0.25*X;
V = 0.5*Y;
quiver(X,Y,U,V,0)

Error using box
Too many input arguments.

Error in quiver (line 96)
    box(cax,'on');

I have updated MATLAB and have been scouring the internet for answers. I am running macOS Sonoma. Has anyone run into these issue before?

[Dyuman Joshi]

Please share the output of -

which box -all

/MATLAB/toolbox/matlab/graph2d/box.m

Answer 1

[Star Strider]

See if you have something else in your MATLAB search path named ‘box’.

which box -all

That is the only thing I can think of that would throw that error.

Running it here:

which box -all

/MATLAB/toolbox/matlab/graph2d/box.m

If anything else show up, that could be the problem.

.

[Mathilde]

Thanks!

This is what I have:

>> which box -all
/Users/mathildeplacek/cobratoolbox/papers/2023_BarrierRound/3isotropic/PolytopeSamplerMatlab-develop/coverage/problems/basic/box.m
/Users/mathildeplacek/cobratoolbox/external/analysis/PolytopeSamplerMatlab/coverage/problems/basic/box.m                            % Shadowed
/Applications/MATLAB_R2023b.app/toolbox/matlab/graph2d/box.m                    % Shadowed

[Mathilde]

I assume the third one should be the one that is not shadowed?

[Dyuman Joshi]

The 3rd one should not be shadowed.

Remove/rename the other two files.

[Mathilde]

That has fixed it. Thank you so much!

[Star Strider]

As always, my pleasure!