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Error when call a Matlab function
Posted 17 juin 2014, 19:45 UTC−4 Interfacing, Materials Version 4.3a 2 Replies
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Hi,
I have created a matlab function, function[r]= vel(w1,w2), to the velocity of reaction in a reacting flow model. The function has two inputs, w1 and w2, the mass fractions of the reagents, which are dependent variables in the Comsol model. I expect that the function returns a real number, but I get the next error message when I try to run Comsol:
Error using ==> mtimes
Inner matrix dimensions must agree.
- Function: vel
Must the function return be a matrix? What is the size of this matrix? because I think that the inputs, w1 and w2, are scalar numbers.
Thanks for any help.
I have created a matlab function, function[r]= vel(w1,w2), to the velocity of reaction in a reacting flow model. The function has two inputs, w1 and w2, the mass fractions of the reagents, which are dependent variables in the Comsol model. I expect that the function returns a real number, but I get the next error message when I try to run Comsol:
Error using ==> mtimes
Inner matrix dimensions must agree.
- Function: vel
Must the function return be a matrix? What is the size of this matrix? because I think that the inputs, w1 and w2, are scalar numbers.
Thanks for any help.
2 Replies Last Post 18 juin 2014, 09:36 UTC−4
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Posted:
1 decade ago
Hi
check the doc, COMSOL expects only arrays back, even single item arrays from matlab
--
Good luck
Ivar
check the doc, COMSOL expects only arrays back, even single item arrays from matlab
--
Good luck
Ivar
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Posted:
1 decade ago
Hi
But what is the size of the array? I ask this because I think that the inputs, w1 and w2, are scalar numbers. So, I don't know how to build the array. I am trying a simple function just for testing:
r=1000*w1*w2
Thanks for your help.
But what is the size of the array? I ask this because I think that the inputs, w1 and w2, are scalar numbers. So, I don't know how to build the array. I am trying a simple function just for testing:
r=1000*w1*w2
Thanks for your help.