Error while mutliplying functions.

10 views (last 30 days)
I'm trying to multiply these functions:
a = x^2
b = x
Obviously, It should give me: x^3
But when I write the code:
a = @(x)x^2;
b = @(x)x;
c = a*b;
I got the error: Undefined operator '*' for input arguments of type 'function_handle'.
What am I doing wrong?

Accepted Answer

Stephen23
Stephen23 on 21 Jan 2017
Edited: Stephen23 on 21 Jan 2017
You cannot multiply function handles. You can either:
1) evaluate the function handles for some value/s, and multiply their outputs:
>> a(2).*b(2)
ans =
8
2) create a new function (which can be evaluated later):
>> c = @(x)a(x).*b(x);
>> c(2)
ans =
8
  1 Comment
Daniel Caliari
Daniel Caliari on 21 Jan 2017
I thought It would work same way the symbolic notation and that was my mistake.
Thanks!

Sign in to comment.

More Answers (0)

Categories

Find more on Programming in Help Center and File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!