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Simultaneous PDPE simulation : Error using integralCa​lc/finalIn​putChecks

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I have output like this, I couldn't solved it
Output of the function must be the same size as the input. If FUN is an array-valued integrand, set the 'ArrayValued' option to true.
[q,errbnd] = iterateScalarValued(u,tinterval,pathlen);
[q,errbnd] = vadapt(@AtoBInvTransform,interval);
Error in integral (line 87)
Q = integralCalc(fun,a,b,opstruct);
q = (Aw/Vgas) * integral(fun,0,L);
Error in pdepe (line 242)
[c,f,s] = feval(pde,xi(1),t(1),U,Ux,varargin{:});

Answers (1)

Aiswarya on 22 Jan 2024
Hi Nabila,
Based on your error it seems that the function 'fun' in your code is an array-valued function. An array-valued function accepts a scalar input and returns a vector, matrix, or N-D array output. The way to resolve this is as mentioned in the error message, set 'ArrayValued' as true in your 'integral' function call as follows:
q = (Aw/Vgas) * integral(fun,0,L,'ArrayValued',true);
You may also refer to the following example of integral of an array-valued function:


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