Print the value of π.
The value of is accessible with no additional modules:
say π;
This instruction, not a surprise, prints the desired value:
3.14159265358979
As you may have noticed, a non-ASCII character was used in the code. Perl 6 assumes that the source code is encoded as UTF-8 by default. Instead, a non-Unicode version can be used, too:
say pi;
There are a couple more constants built-in in Perl 6: tau and e; both of them have Unicode variants:  and  (character code 0x1D452):
say Ï„;
say e;
The value of tau is equal to 2π, and the above program prints the following result:
6.28318530717959
2.71828182845905
It is also worth knowing that in Perl 6, there’s a special constant for presenting infinity: Inf or ∞. This number is bigger than any other (reasonably big) number; either an integer or a floating-point value.
say 1E120 < ∞; # Prints True