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x=1;y=2;
save 'user volume:x'
save 'user volume:workspace'

The first save command saved the variable x into a file x.mat. You can
change the name of the .mat file so it does not match the variable name, but
that would be confusing. The second command saves all variables (x and y)
in the workspace into workspace.mat.
To load x.mat and workspace.mat, enter MATLAB and use the MATLAB
load functions; note what you obtain if you entered the following commands:

load 'user volume:x'
x
load 'user volume:workspace'
y
After loading the variables, you can see a list of all the variables in your
workplace if you enter the MATLAB who command.
What would you obtain if you had typed and entered the who command at
this point?
Now, to clear the workspace of some or all variables, use the MATLAB
clear function.

clear x %clears variable x from the workspace
clear %clears all variables from workspace

1.12 MATLAB Commands Review

axis Sets the axis limits for both 2-D and 3-D plots. Axis
supports the arguments equal and square, which
makes the current graphs aspect ratio 1.
contour Plots contour lines of a surface.
clear Clears all variables from the workspace.
clf Clears figure.
for Runs a sequence of commands a given number of
times.
getframe Returns the pixel image of a movie frame.
help Online help.
hold on(off) Holds the plot axis with existing graphics on, so that
multiple figures can be plotted on the same graph
(release the hold of the axes).

© 2001 by CRC Press LLC