Error: Too many output arguments

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Alex Vasin on 14 May 2017

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https://la.mathworks.com/matlabcentral/answers/340223-error-too-many-output-arguments

Commented: Star Strider on 4 Nov 2021

Accepted Answer: Star Strider

Hi. In my main M script I have:

                         x = 0:50;
                        
                         y = 0:50;
                        
                         [X,Y] = meshgrid(x,y);
                        
                         P = P_fn(X,Y);

in my function I have:

                         functionP_fn(x,y)
                        
                         P = involving both terms x and y>
                        
                         end

when I run it I get the error:

>> P = P_fn(X,Y);

Error using P_fn

Too many output arguments.

Can functions only output one calculation and output? My equation works just fine if I use it in the main M script.

Thanks for reading

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Accepted Answer

Star Strider on 14 May 2017

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Direct link to this answer

https://la.mathworks.com/matlabcentral/answers/340223-error-too-many-output-arguments#answer_266981

The error is because you did not define the function with outputs.

Try this:

                             functionP = P_fn(x,y)
                            
                             P = involving both terms x and y>
                            
                             end

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Star Strider on 15 Sep 2021

@Hadjer BEN BRAHIM —

This should be a new Question.

                                   b = myRand
                                  
                                      b =
                                      3×4
                                     
                                       1.4722 0.2712 7.6027 8.2860 4.9290 5.6392 1.6085 8.6403 8.9170 5.5582 5.6037 7.0630

                                   functiona = myRand
                                  
                                   a = 10*rand(3,4);
                                  
                                   end