Passing functions with fixed input

Consider the following function

function f = fun1(x, a)
    f = a * x;
end

here x is a scalar variable and a is a scalar parameter. Now consider this second function

function g = fun2(fun)
    x = rand;
    g = f(x, 1);
end

if we pass @fun1 to fun2, then fun2 evaluates fun1 over the variable x with the parameter a fixed to the value 1.

I'm wondering if it is possible to pass to fun2 the function fun1 with a given parameter a fixed, e.g. a=1.

In my main script I would like to write something like

g = fun2(@fun1(x, 1));

where I'm intending that the first input argument x will be defined inside fun2, while the parameter a is already fixed to the value 1, so that is not necessary to define a inside function fun2

Answer 1

[Stephen23]

The MATLAB documentation covers this here:

https://www.mathworks.com/help/matlab/math/parameterizing-functions.html

See also:

https://www.mathworks.com/help/matlab/matlab_prog/anonymous-functions.html

g = fun2(@(x)fun1(x,1))

g = 0.3941

function f = fun1(x, a)
f = a * x;
end
function g = fun2(fnh)
x = rand;
g = fnh(x);
end