Prohibit "pcg" writing to command window
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Daniel Döhring
el 4 de Jul. de 2018
Comentada: Josh Meyer
el 23 de Sept. de 2019
Hello,
I got a more cosmetic question concerning matlab function "pcg" https://de.mathworks.com/help/matlab/ref/pcg.html. Is there a way to prevent a command line output from pcg after each (un)successful call? It is annoying and might even slow my program down due to the writing to the command window. Thanks in advance, Daniel
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Geoff Hayes
el 5 de Jul. de 2018
Daniel - Wow that is busy. Perhaps try doing
[x,~,~,iter] = pcg(Id-(tspan(i+1)-tspan(i))*A, U(:,i));
U(:,i+1) = x;
I noticed that if I just did
[x] = pcg(Id-(tspan(i+1)-tspan(i))*A, U(:,i));
then I would observe the pcg converged at ... message. But with the other line of code where I have an iteration output parameter, iter, then the message is suppressed.
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Josh Meyer
el 23 de Sept. de 2019
To clarify for future readers: if you specify the second FLAG output then the function stops printing convergence information to the command window. Instead the value of the FLAG output conveys whether the attempt was successful.
[x,flag] = pcg(...)
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