Pi To Nth

This program returns the mathematical constant pi to a designated number of decimal places
It performs type checking on the arguments to ensure the value supplied is an integer
It ignores all non-integer arguments and returns a result for each valid integer argument

Arguments

This program accepts an arbitrary number of arguments. Invalid (non-integer) arguments throw an error indicating the argument is not castable as an integer, then continues execution on the remaining valid arguments

n -- an integer value representing the number of decimal places to which to resolve pi