Is this the best datatype to use for doing calculations for extremely large numbers such as computing pi . Or am I going to need to create my own algorithm for handling extremely large numbers? how does software like superpi handle such a large number, im assuming its all split up and they have appropriate code for dealing with exactly that.
Also when I do calculations with long doubles sometimes I get this weird code that gets outputted on cout instead of the number. It doesnt always happen and im wondering what it is.