Incorrect number of inputs or outputs for function linspace

[Walter Roberson]

clc
clear
x=0:pi/100:2*pi;
y=sin(x);
z=linspace(1,100)

z = 1×100

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

The default for linspace() is 100 points.

If your linspace() is complaining then somehow you are getting a different linspace. What shows up for

which -all linspace

/MATLAB/toolbox/matlab/elmat/linspace.m
/MATLAB/toolbox/matlab/datatypes/datetime/@datetime/linspace.m   % datetime method
/MATLAB/toolbox/matlab/datatypes/duration/@duration/linspace.m   % duration method
/MATLAB/toolbox/parallel/gpu/@gpuArray/linspace.m                % gpuArray method
/MATLAB/toolbox/parallel/parallel/@distributed/linspace.m        % distributed method
/MATLAB/toolbox/parallel/parallel/@codistributed/linspace.m      % codistributed method
/MATLAB/toolbox/parallel/parallel/@codistributor1d/linspace.m    % codistributor1d method
/MATLAB/toolbox/parallel/parallel/@codistributor2dbc/linspace.m  % codistributor2dbc method
/MATLAB/toolbox/symbolic/symbolic/@symfun/linspace.m             % symfun method

[Tanveer Islam]

only these 2 show up.

[Tanveer Islam]

Also there is an additional error line for any new code i run although it doesnt involve linspace. it goes like this

Warning: Error updating ButtonImage.

Undefined function 'linspace' for input arguments of type 'double'.

it is repeated multiple times.

for further context, I did cut and paste the r2023 version from the original c folder to g recently.

[Star Strider]

It should be returning something similar to those in Walter’s Comment.

Run these from a script or your Command Window:

restoredefaultpath

rehash toolboxcache

Then try your original code again and report the results.

[Torsten]

for further context, I did cut and paste the r2023 version from the original c folder to g recently.

That's temerarious.

[Walter Roberson]

The MATLAB that you copied from C: to G: recently appears to not be complete. If you need it to be stored in G: drive you should remove the G: version and uninstall from C: and then use the installer to install into G: directly.

[Tanveer Islam]

Doesnt work :/

[Torsten]

@Tanveer Islam

You should follow Walter's advice.

Answer 1

[chicken vector]

Even if it is a matter of personal taste, for unit steps I usually prefer to do:

z1 = 1 : 100;

Nontheless, this should also work:

z2 = linspace(1, 100);
isequal(z1, z2)

ans = logical
   1

Are you sure didn't create a function called linspace?

Have you tried to reset the path and clear the Workspace?

Try to restart Matlab and run it again.