Anonymous function returns too many input arguments

Question

I separately wrote the following function

function [func] = fwet_1(~)
func = @(gm1,Sc,Scmax) (Sc/Scmax)^gm1;
end

and when I to run fwet_1(0.23,1,3) it returns

Error using fwet_1
Too many input arguments.

any idea?

Answer 1

fwet_1 takes a single input, which must be ignored by the function. Your syntax is calling fwet_1 itself with three inputs, not the function handle it returns.

You can call the function handle like this (literally any single argument is allowed in place of [] ):

x = fwet_1([])
x(0.23,1,3)

If your function really does nothing but return a function handle, skip the function entirely, or remove the unnecessary level of nesting. Eg:

function [val] = fwet_1(gm1,Sc,Scmax)
val = (Sc/Scmax)^gm1;
end

If you need a function handle, just use @fwet_1 . There's no difference between a regular function and an anonymous one when you pass it around.