how to combine several functions

i have the following functions:

f1 = @(k1)108.4*k1

f2 = @(k2)108.4*k2

f3 = @(k3)108.4*k3

f1,f2,f3 are automatically generated, and can be very different. i would like to have a unifying function

f = f1 + f2 + f3

and i want to call f in solvers such as fsolve or fmincon.

Thank you !

Answer 1

[per isakson]

Hint:

    f1 = @(k1)108.4*k1;
    f2 = @(k2)108.4*k2;
    f3 = @(k3)108.4*k3;
    sumf = @(k1,k2,k3) f1(k1)+f2(k2)+f3(k3);
    sumf( 1, 2, 3 )
    ans =
      650.4000

or

    sumf = @(k) f1(k)+f2(k)+f3(k);
    sumf( 2 )
    ans =
      650.4000
    >>

[pemfir]

I truly appreciateeeeeeeeeee it !

[pemfir]

but this does not work with fsolve !!!