How to create function handle with matrix inputs, vector output?

I am trying to create a function:

FCN = @(x) x(1) + x(2);

that will accept matrix inputs and spit out a vector of values.

Ie. if the input is:

in=[1 2; 3 4], FCN(in)

the output should be: [3 7]

Is there any way of doing this? Right now, the function is only returning the sum of the first column.

Answer 1

[madhan ravi]

 FCN = @(x) x(:, 1) + x(:, 2);
 sum(in, 2) % ??