a little controller help

[eluser]natefons[/eluser]
so i just got into CI and learning the ins and outs of it. i have a quick question, and i apologize if its been asked/answered before.

my question is using controllers/views.

now from my understanding, when you have a function n your controller, you can access that function using:

example.com/index.php/controllername/function/arguments/

what im wondering is, is it possible to hide the index.php and call the controller directly?

-Nate