Hi all,

I am having trouble with user-defined functions in matlab.

I want to add up 'n' numbers in a summation for a function.

The equation, without values plugged in, is this:

(It is about equivalence resistance)

1/REQ = 1/r1 + 1/r2 + 1/r3 + 1/r4 + 1/r5 +....+ 1/rn

You get the point.

So Here is my work for matlab:

Function:

function [REQ] = req(r)

req=1/sum(1./r);

return

And this is my script file:

req_1=req(50,75,300,60,500,180,200)

The seven inputs being what needs to go into the function.

Thanks for any help!