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.
Solution Stats
Problem Comments
8 Comments
Solution Comments
Show comments
Loading...
Problem Recent Solvers260
Suggested Problems
-
Remove the small words from a list of words.
1559 Solvers
-
Project Euler: Problem 2, Sum of even Fibonacci
2829 Solvers
-
Given a matrix, return the last eigen value
233 Solvers
-
Fahrenheit to Celsius converter
600 Solvers
-
700 Solvers
More from this Author2
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
My code runs fine on my local machine, but I get error messages when I try it here.
Error using compose (line 85) First argument must be a string array, character vector, or cell array of character vectors. Error in TestPoint1 (line 3) h = compose(f,g);
To the creator of this problem: please rename this function in your test suite. "Compose" is already a built-in MATLAB function.
Changed the function name to composeFcn to avoid clashing with the compose built-in function. Let me know if you're still having trouble!
I guess the name needed changing, but be aware that if we ever re-score old entries, everyone who passed before the name change will now fail, since they will now be calling the wrong function.
Thanks, David Hruska!
function h = composeFcn(f,g)
syms x
x=g(x);
h=matlabFunction(f(x));
end
I am so confused where i was wrong?
@善翔 韩, syms is a part of symbolic toolbox and toolboxes are not available on cody.