See the OCTAVE project page. To use OCTAVE, you’ll use the module tool.

You can see what versions are available by using:

[me@login01 ~]$ module avail octave

------------------------------ /opt/modulefiles -------------------------------
   octave/7.3.0

Use "module spider" to find all possible modules and extensions.
Use "module keyword key1 key2 ..." to search for all possible modules matching
any of the "keys".

To load a specific version, you would use:

[me@login01 ~]$ module load octave/7.3.0

while the "octave" wildcard will load the default version, octave-7.3.0 in this case.

You should now be able to run OCTAVE commands:

[me@login01 ~]$ octave

GNU Octave, version 7.3.0
Copyright (C) 1993-2022 The Octave Project Developers.
This is free software; see the source code for copying conditions.
There is ABSOLUTELY NO WARRANTY; not even for MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  For details, type 'warranty'.

Octave was configured for "x86_64-pc-linux-gnu".

Additional information about Octave is available at https://www.octave.org.

Please contribute if you find this software useful.
For more information, visit https://www.octave.org/get-involved.html

Read https://www.octave.org/bugs.html to learn how to submit bug reports.
For information about changes from previous versions, type 'news'.

octave:1>