Problem 581. Function composition

Difficulty:Rate

Write a function that accepts two function handles f and g and returns the composition h. That is,

h = (f o g)(x) = f(g(x))

Example:

>> f = @(x)x^2;
>> g = @(x)x+1;
>> h = composeFcn(f,g);
>> h(3)
ans =
  16

because (3+1)^2 = 16.

Solve

Last Solution submitted on Apr 11, 2025

Show 5 older comments

yurenchu on 27 Apr 2017

Thanks, David Hruska!

善翔韩 on 28 Aug 2022

function h = composeFcn(f,g)
syms x
x=g(x);
h=matlabFunction(f(x));
end
I am so confused where i was wrong?

Dyuman Joshi on 28 Aug 2022

@善翔韩, syms is a part of symbolic toolbox and toolboxes are not available on cody.

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