What is the latest version of matlab for which cvx will work?

1

I, as well as some others on the forum, have been having issues running CVX on the latest, 2023 versions of MatLab. What is the latest that has worked for you all?

2

It works for me and many other users on the forum in R2023b. What exactly is the problem?

3

For context, I’m planning to use CVX to minimize L2 norms and L1 norms as part of a compressed sensing algorithm (like Steve Brunton). I’m on windows, matlab R2023a.

First, I unzipped cvx-w64 and ran cvx_setup. This provided the error:

Unrecognized function or variable ‘cvx_error’.

Error in cvx_setup (line 352)
** cvx_error( errmsg, 67, 'UNEXPECTED ERROR: ', ’ ’ );**

Then I ran cvx_error from the same folder, and got this error:

UNEXPECTED ERROR: ------------------------------------------
** Undefined function ‘cvx_version’ for input arguments of type**
** ‘char’.**
** Error in cvx_setup (line 20)**
** cvx_version( ‘-install’, varargin{:} );**
** ------------------------------------------------------------**
Please report this error to support, and include entire output of
CVX_SETUP in your support request.
---------------------------------------------------------------------------

When run in my code, the error is simply, “Unrecognized function or variable ‘cvx_begin’.”

4

I could not reproduce it in R2023b. Below is the start of my log, you can see if there is anything substantially different. I unzipped the “standard bundle” http://web.cvxr.com/cvx/cvx-w64.zip

To be sure start with a completely clean Matlab session without anything in the MatlabPath beyond the defaults and no special preferences.

It almost looks like you are missing some files. Is cvx_version.m there?


---------------------------------------------------------------------------
CVX: Software for Disciplined Convex Programming       (c)2014 CVX Research
Version 2.2, Build 1148 (62bfcca)                  Tue Jan 28 00:51:35 2020
---------------------------------------------------------------------------
Installation info:
    Path: D:\users\aszek\cvx
    MATLAB version: 23.2 (R2023b)
    OS: Windows Server 2016 amd64 version 10.0
    Java version: 1.8.0_202
Verfying CVX directory contents:
....