MATLAB - Applying a function for each element in an array using arrayfun

I'm not a big matlab fan. For a project I needed to apply a function for each element in an array. For that arrayfun can be used.

Here is a simple example.

Say you have 3 arrays as follows.

A = [1,2,3,4]
B = [5,6,7,8]
C = [9,10,11,12]

And you need to calculate the value of a function myf, for A[i], B[i] and C[i] (i=1,2,3,4) which returns A[i] x B[i] + C[i]

You can do it as follows.

First define your function considering a single element.

function output=myf(a,b,c)
  output=a*b + c;


A = [1,2,3,4]
B = [5,6,7,8]
C = [9,10,11,12]

D = arrayfun(@myf,A,B,C)

Remember to have "@" before myf. It denotes a handle in matlab. If you forget it, matlab will try to evaluate the function instead of considering its handle, which may result in "Not enough input arguments" error.


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