Output Pi without math

PHP - 22 bytes

<?=date('n.j',8899e5);

Pi Day in year 1998 was really cool!

C, 39

Assumes the machine is little-endian and uses IEEE floating-point standard.

main(){printf("%.2f",*(float*)"P@I@");}

The fun fact is that "P@I@" is actually not related to PI but is equivalent to 0x40494050 which is the representation of 3.144550323486328

http://ideone.com/uXVEtl

dc, 11 9 bytes

zE[.]znPp

• z Push current stack depth (0) onto the stack
• E Push E₁₆ (==14₁₀)
• [.] Push the string "."
• z Push current stack depth (3) onto the stack
• n Pop 3 and print as number
• P Pop "." and print as char
• p Pop 14 and print as number with newline

Output:

$ dc <<< zE[.]znPp
3.14
$