Help creating a function library

I've been doing an assignment incorrectly the past few days and need help:

I need to create a library of functions that I can add to new scripts in MATLAB. They are simple equations that rely on 3 inputs. So I need to be able to type E(#,#,#) in the script and have it give me a result based on a function I have defined as E. I have figured out how to create a function but I do not understand how to use it. I've check to documentation but mine isnt working.

[Jan]

"mine isnt working" would be clear, if you post your code, show how you call it and show us the error message. It is not efficient if the readers guess, what you have written, how you call it and what you observe.

Answer 1

[Jan]

Store this as an M-file:

function Result = E(In1, In2, In3)
Result = In1 * In2 + In3;
end

Now call this by:

Result = E(1, 2, 3)