how to call a function in the main code to applicate it wiyh different variables?

hi, i have a function :

function F=soleval(SV,coutl,couth,it_max)
.
.
.
F=sum(sum(coutl(k1,e1))*tabaffes(k1,e1))+sum(sum((couth(e1,e2))*(1-y(e1,e2))));

by calling this function in the main code ,i want to have the result of:

F
F(e1,e2)
F(e1,k1)
can you help me please?

[Walter Roberson]

Is F computing a symbolic expression? If not then F will be a definite value and then the only way it would make sense to talk about F(e1,e2) would be if e1 and e2 are array subscripts into the array F.