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POMatlab/Octave function handlers and nargin
 

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    <p>I am writing program in Octave and I encountered a problem, I implemented Gauss-Legandre Quadrature and I pass to my Gauss-Legandre function few arguments, and I pass the function to be intergrated in a cell cube, so I can pass few function at a time. I have this piece of code:</p> <pre><code> for weight=1:length(w) temp=1; for fun=1:length(c) %liczenie iloczynu f(x_i)g(x_i), x_i - pieriwastki wielomianu Legandra f=c{fun}; nargin(func2str(c{fun})) if (nargin (func2str(c{fun})) == 1) disp('a'); temp*=c{fun}((b-a)/2 * x(weight) + (a+b)/2); else (b-a)/2 * x(weight) + (a+b)/2; temp*=f((b-a)/2 * x(weight) + (a+b)/2,I,points); end end %mnozenie wyniku przez odpowiedni wspolczynnik - wage temp*=w(weight); result+=temp; end </code></pre> <p>In cell array there are function handlers to functions which I want to integrate. Depending on number of arguments that function takes i want to use two different calls for function. If in cell array there is handler to a function that is written in .m file in the same directory as my Octave working directory everything works fine, but when i define function in Octave running time, for example:</p> <pre><code> function result=a(x) result=x*x end </code></pre> <p>Type</p> <pre><code> c{1}=@a </code></pre> <p>and pass this cell array to my function Kwadratury there is an error of nargin</p> <pre><code> error: nargin: invalid function error: called from: </code></pre> <p>Why is that and how can I solve it, so I can define function not only in .m files but also in Octave.</p>
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