Error: Too many outputs to function

I'm a student in an entree level programming class.

I'm using Freemat just in case that becomes a problem, but I have a hopefully simple question In my main script,

    for i=2:5
        T(i)=nodeTemperature(i,T,h);
    end

then in the nodeTemperature script,

    function nodeTemperature(i,T,h)
    evalin('base','T(i-1) + T(i+1) + (h^2)*B*Ts  / ( (h^2)*B+2)');

is giving me "Too many outputs" I've defined h and B already in my script and when I type out for instance "nodeTemperature(2,T,h)" in the command window it returns the value I am expecting. But when I try to set it equal to T(i)it gives me the error. I'm required to have the "T(i)" be defined by a function using evalin inside the function. I've gotten it to work when I eliminated the function but I won't get credit for the assignment.

I'm really really new to this and I could use the help, thanks

Answer 1

[Walter Roberson]

function r = nodeTemperature(i,T,h)

    B = evalin('base', 'B');
    Ts = evalin('base', 'Ts');

    r = T(i-1) + T(i+1) + (h^2) * B*Ts / ( (h^2)*B+2));