Error calling 'int'. This call-site passes more inputs to this function than it can accept.

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Kiran Mahmood 2018-10-28

1
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https://ww2.mathworks.cn/matlabcentral/answers/426526-error-calling-int-this-call-site-passes-more-inputs-to-this-function-than-it-can-accept

评论： Kiran Mahmood 2018-10-29

I'm trying to make a user defined function for integration. It gives an error Error calling 'int'. This call-site passes more inputs to this function than it can accept.

My code is:

 function y = fcn(u,a,b)
%#codegen
y=int(u,a,b)
end

where a = t-0.1 ;

b=t

t is input from clock

Please help how to resolve this.

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Walter Roberson 2018-10-28

Are you sure you want to do symbolic integration?

What I suspect is that you want to use trapz()

Kiran Mahmood 2018-10-29

Yes it is not a symbolic integration. What I'm trying to do is..I want to integrate a function over time from t-h to t. where t is simulation running time and h=0.1

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回答（1 个）

madhan ravi 2018-10-28

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https://ww2.mathworks.cn/matlabcentral/answers/426526-error-calling-int-this-call-site-passes-more-inputs-to-this-function-than-it-can-accept#answer_343832

编辑：madhan ravi 2018-10-28

在 MATLAB Online 中打开

what happens when you do this :

y = integral ( @(t) u,a,b )

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madhan ravi 2018-10-28

在 MATLAB Online 中打开

function y = fcn(u)
a = t-0.1;
b = t;
%#codegen
y=int(u,a,b)
end

Kiran Mahmood 2018-10-28

Undefined function or variable 't'. I don't know how to set this t as simulation time.

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Simulink Simulation Integration Create Large-Scale Model Components Integrate External Code into Simulink Integrate C/C++ Code into Simulink Integrate C/C++ Code Using Code Importers Integrate C/C++ Code Using C Function Blocks

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