export org to latex, but do not include matlab code only the result

[Uwe Brauer]

Hi

I using GNU emacs 29.4 and org 9.7.14.
 
I swore one of the following code snippets using matlab with results
were exported to LaTeX, but only the results not the matlab code
snippets.

Not any more always the code and the result and the code is exported.

Any idea how to solve this 

Thanks

Uwe Brauer

Code follows

* First

#+begin_src matlab  :tangle annu_sol_ex23.m :padline yes :results output raw 
:exports results  :eval never-export 
addpath     /home/oub/ALLES/HGs/Matlab-init/Routh-Hurwitz
num=[1 1];
den=[1 5 -6 0];
sys=tf(num,den);
latex_str = micaracteristic(num, den);
#+end_src


#+RESULTS:
\begin{equation}
K-6\,s+K\,s+5\,s^2+s^3=0
\end{equation}

* Second
#+begin_src matlab :exports results :results output raw
addpath     /home/oub/ALLES/HGs/Matlab-init/Routh-Hurwitz
num=[1 1];
den=[1 5 -6 0];
sys=tf(num,den);
latex_str = micaracteristic(num, den);
#+end_src

#+RESULTS:
\begin{equation}
K-6\,s+K\,s+5\,s^2+s^3=0
\end{equation}


* Third
#+begin_src matlab :tangle annu_sol_ex23.m :padline yes :results output raw 
:exports code  :eval never-export
addpath     /home/oub/ALLES/HGs/Matlab-init/Routh-Hurwitz
num=[1 1];
den=[1 5 -6 0];
sys=tf(num,den);
latex_str = micaracteristic(num, den);

#+end_src

#+RESULTS:
\begin{equation}
K-6\,s+K\,s+5\,s^2+s^3=0
\end{equation}

* Fourth
#+begin_src matlab :tangle annu_sol_ex23.m :padline yes :exports both :eval 
never-export :results output latex
addpath     /home/oub/ALLES/HGs/Matlab-init/Routh-Hurwitz
num=[1 1];
den=[1 5 -6 0];
sys=tf(num,den);
latex_str = micaracteristic(num, den);
#+end_src

#+RESULTS:
#+begin_export latex
\begin{equation}
K-6\,s+K\,s+5\,s^2+s^3=0
\end{equation}
#+end_export


* Fifth
#+begin_src matlab :tangle annu_sol_ex23.m :padline yes :exports both :eval 
never-export :results output latex
addpath     /home/oub/ALLES/HGs/Matlab-init/Routh-Hurwitz
num=[1 1];
den=[1 5 -6 0];
sys=tf(num,den);
latex_str = micaracteristic(num, den);
#+end_src

#+RESULTS:
#+begin_export latex
\begin{equation}
K-6\,s+K\,s+5\,s^2+s^3=0
\end{equation}
#+end_export


* Six
#+begin_src matlab  :tangle annu_sol_ex23.m :padline yes :results output raw 
:exports results  :eval never-export 
addpath     /home/oub/ALLES/HGs/Matlab-init/Routh-Hurwitz
num=[1 1];
den=[1 5 -6 0];
sys=tf(num,den);
latex_str = micaracteristic(num, den);
#+end_src

#+RESULTS:
\begin{equation}
K-6\,s+K\,s+5\,s^2+s^3=0
\end{equation}


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