Using a function in another function

I'm trying to use a function in another. For example, there's a defined function:

function y=super(x)
y=x.^2;
end

and I want to use it in another:

function work(super,a,b)
%blah blah blah
end

What I tried was:

f=@super

this did not work...any advice?

[James Tursa]

Please show the complete code that you tried, not just snippets. Does the super( ) function reside in a file called super.m or is it part of another file? What does the f=@super have to do with how you are calling it? Etc.

[SENLIN YUE]

this is what I did:

function work(super,a,b)
f=@super;
if sign(f(a))~=sign(f(b))
    error('a and b must be both positive or negative')
end
end

and yes, super() is a file called super.m

Answer 1

[James Tursa]

So, normally one would just have f in your work function. E.g.,

function work(f,a,b)
if sign(f(a))~=sign(f(b))
    error('a and b must be both positive or negative')
end
end

And then when you called the work function you would pass in a function handle. E.g.,

work(@super,a,b)

[SENLIN YUE]

understood. Thanks!