[Scilab-users] unable to find my mistake in the function

[Sachverständigenbüro Niedermaier Holger]

Dear all, 
may anybody be able to explain why I get the error message "invalid index in line 12“ by running the following function?

function [Wert]=Berechnungsfunktion(von, bis, schrittweite, y0, y2, t0, t2)
    for n=1:3
        t(1)=t0;
        y(1,n)=y0;
        schritte=(bis-von)/schrittweite;
       for i=1:schritte
            t(i+1)=t(i)+schrittweite;
            y(i+1,n)=10^(log10(y0*Faktor(n))+log10(y2/y0)/log10(t2/t0)*log10(t(i+1)/t0))
       end
        disp(n)
        for i=1:schritte
            Energie(n)=Energie(n)+y(i)*y(i)*schrittweite*10^(-3);
        end
        disp(Energie(n))
     end
    //disp("1 Polig",Energie(3),"2 Polig", Energie(1),"3 Polig", Energie(2))
    //Wert=[Energie];
endfunction
I myself be to blind to find my mistake
Thanks a lot
Holger
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