Creating a general function handle

  1. I'm writing a MATLAB function m-file which has input argument of some N-by-1 vector.

    Say this vector is [1,2,3].

    I want to create a function handle representing a sum of x taken to the power of each number that appears in the vector, so in this case it is:

    f = @(x) [x^1 + x^2 + x^3]; (x scalar)

    The point is, I don't know how to define f when I don't explicitly know what the input vector is. Can anyone help me generate a general function handle? The trick is because N is variable.
  2. jcsd
  3. uart

    uart 2,776
    Science Advisor


    f = @(x) sum(x.^v)
  4. I like it! Thanks very much
Know someone interested in this topic? Share this thead via email, Google+, Twitter, or Facebook

Have something to add?