How to enter multiple values for a single input in a function

So what I'm trying to do is have a function take in a vector of inputs, and then use them seperately in a function. So the function would be something simple, like adding 1 to every input value, but I want the limit of input values to be practically infinite. So I want to assign the variable x to every component of a vector and add 1 to each component, then at the end I want to obtain the sum of every component in the vector. I don't quite know how else to ask this question, something like

x = [1, 2, 3 . . . .]
answer = sum(x+1)

[Matt J]

Haven't you asnwered your own question? It sounds like you want this:

function answer = mysum(x)
  answer = sum(x+1);
end

or this,

>> mysum=@(x) sum(x+1);

[Brett Baxter]

The reason why I asked is because I'm having trouble getting it to then find the sum of the components when I make it more complicated. my current function looks something like this

function answer = myfunction(x)
answer = sum((x+1)^2 * mod(x, 2))
end

So what I'm trying to get matlab to do is then take a vector of some specified string of numbers like

x = [1, 2, 3, 4, 5]

and then plug every single value into the function and then sum up every single result into one number. Going back to the original example, I want the function to do something like 1+1, 2+1, . . . and then add up every single result into a single integer

[Matt J]

Going back to the original example, I want the function to do something like 1+1, 2+1

But the code you've shown sum(x+1) does do precisely that. What operation is it that you think you can't do this way?

[Brett Baxter]

I figured it out, I had misplaced some of the '.' to specify that I was multiplying vectors. As well, I just needed to specify that I wanted the sum of the output. So sum(answer) to get it to all add up.

[Nasir]

can someone tell me about how to enter multiple values in single string

x = [1 2 3 4 5 6 ...............................................1000]

Answer 1

[Asad (Mehrzad) Khoddam]

Most Matlab functions are vector based. you should use .^ for vector based ^ and .* for vector based *

So you function line looks like this:

answer = sum((x+1).^2 .* mod(x, 2));

and ./ instead of /