title: How to pass in multiple arguments to an APL function
body: <p>I'm trying to write a few different functions, such as standard deviation and linear regression in APL. I need to pass in a list of (x, y) points, but I can't figure out how to do that because I know the syntax of an APL function only allows for 0, 1, or 2 arguments to be passed in.
  Is there any kind of array I can use in APL to pass in the list as an array?</p>