Whenever I try to use my function f(x,y) I get an error message that says that I need to define f.

f = @(x,y) x+y;

and the error message i get says

"The value assigned to the variable 'f' might be unused."

I do not know what to do or what is happening, I am working on a Eulers project and I need the function to run correctly.

Answer 1

[Kevin Holly]

I do not have the error when I run it.

f = @(x,y) x+y;
f(6,7)

ans = 13

Are you defining f as a variable afterwards as such?

f = @(x,y) x+y;
f = 6

f = 6