Zaikun Zhang

Sun Yat-sen University

Last seen: 3 mesi fa | Attivo dal 2019

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http://www.zhangzk.net

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MATLAB 2025a segfaults on Ubuntu when handling Fortran MEX files with internal subroutines
This issue is due to increased security measures on Linux machines. Starting in R2025a, the execstack flag of the MATLAB executa...

circa 2 mesi fa | 0

| accettato

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An issue with parfor in MATLAB R2023a--R2025a
Consider two MATLAB m files named profile.m and try_parfor.m as follows. % profile.m function profile() olddir = pwd(...

4 mesi fa | 0 risposte | 2

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MATLAB 2025a segfaults on Ubuntu when handling Fortran MEX files with internal subroutines
This is very likely a bug of MATLAB R2025a on Ubuntu. I would like to know whether anyone else can reproduce it (on Ubuntu). Tha...

6 mesi fa | 1 risposta | 0

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PDFO: Powell's Derivative-Free Optimization solvers
Interfaces by Tom M. Ragonneau and Zaikun Zhang for using the late Professor M. J. D. Powell's derivative-free optimization solv...

oltre un anno fa | 5 download |

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PRIMA: Optimization without Using Derivatives
PRIMA is a package for solving general nonlinear optimization problems without using derivatives.

oltre un anno fa | 5 download |

5.0 / 5

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Does MEX of MATLAB R2023b (update 6) on macOS-13 work with Xcode 15 and Intel oneAPI 2023?
[Update 20240217: I am almost sure that this is a bug of MATLAB R2023b. The default MEX options are wrongly specified. They are ...

quasi 2 anni fa | 0 risposte | 1

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Strange behavior of `copyfile` regarding symlinks on Linux and macOS
Update 20231031: Below is the response from MathWorks support. " Please be assured that this has been confirmed as a bug and i...

circa 2 anni fa | 0

| accettato

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Strange behavior of `copyfile` regarding symlinks on Linux and macOS
Consider the following function. %test_copyfile.m function test_copyfile() ...

circa 2 anni fa | 1 risposta | 0

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MatCUTEst
MatCUTEst is a package for facilitating the usage of CUTEst (https://github.com/ralna/CUTEst) in MATLAB on Linux.

oltre 2 anni fa | 2 download |

0.0 / 5

Inviato

setup_mex: Set up MEX on Windows and macOS for Fortran and C
This package provides scripts that facilitate setting up the MATLAB MEX on Windows and macOS for compiling Fortran and C using I...

oltre 2 anni fa | 11 download |

0.0 / 5

Risposto
fmincon optimization not running properly, stops beacuase of StepTolerance
I conducted a quick experiment using the function and data in the question. The solvers are fmincon of MATLAB and PRIMA, which i...

oltre 2 anni fa | 1

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Bug in MATLAB R2022a: MEX does not support gfortran 8.x as specified in the official documentation
According to MEX team (20220406, copied from a GitHub Issue): This is bug with R2022a and we are fix it as soon as possible. T...

oltre 3 anni fa | 1

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Bug in MATLAB R2022a: MEX does not support gfortran 8.x as specified in the official documentation
Update (20220406): The MathWorks MEX team has confirmed this problem as a bug of MATLAB R2022a. A workaround is provided by the ...

quasi 4 anni fa | 1 risposta | 0

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Does the execution of addpath/rmpath/savepath in one workspace affect other workspaces?
Does the execution of addpath/rmpath/savepath in one workspace affect other workspaces? Suppose that I have two instances of MA...

quasi 4 anni fa | 1 risposta | 0

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Bug: MATLAB crashes when mexifying the official `timestwo.c`
Here is the latest update (20220225) received from the supporting team of MathWorks: ``` Got the confirmation that the crash...

quasi 4 anni fa | 0

| accettato

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Why trust-region-reflective algorithm in fmincon require a gradient as input?
What you @SM are looking for is called Derivative-Free Optimization methods. They do not require derivatives or analytical formu...

quasi 4 anni fa | 0

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Is MEX known to be slow on macOS?
Question: Is MEX known to be slow on macOS? Here, "slow" refers to the speed of setting MEX up, of compiling MEX code, and of ...

quasi 4 anni fa | 0 risposte | 0

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Bug: MATLAB crashes when mexifying the official `timestwo.c`
Update (20220225): Here is the latest update received from the supporting team of MathWorks. ``` Got the confirmation that th...

quasi 4 anni fa | 1 risposta | 0

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Need help with mathematical optimization - fmincon
Your problem is a simulation-based optimization problem. You may try PDFO ( https://www.mathworks.com/matlabcentral/fileexchan...

oltre 5 anni fa | 0

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Supress MEX warning: f951: Warning: Nonexistent include directory ‘MATLABROOT/simulink/include’ [-Wmissing-include-dirs]
I have MATLAB 2019b but not simulink installed on my computer (ubuntu 16.04). When trying mex(fullfile(matlabroot, 'extern', 'e...

oltre 5 anni fa | 1 risposta | 0

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Recursive definition of anonymous function
(Note that the mathematics in this question is hypothetical and illustrative.) Suppose that I am writing a function "foo" to mi...

oltre 5 anni fa | 1 risposta | 1

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The return type of mxIsDouble, mxIsSingle, and mxIsClass (mex for Fortran)
According to https://www.mathworks.com/help/matlab/apiref/mxisclass.html the return of mxIsDouble for Fortran (also mxIsSingle ...

oltre 6 anni fa | 1 risposta | 0

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Portable declaration of REAL variables in mex gateway for Fortran
(The same question is asked here: https://stackoverflow.com/questions/57244555/portable-declaration-of-real-variables-in-mex-gat...

oltre 6 anni fa | 1 risposta | 0

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