Street Parking: Metered parking available on Charles St. $1.25 per hour; 2 hour maximum before having to move to a different meter. Valet parking: Available starting at 5 PM daily. Valet charge is $20. Garage Parking: Boston Common Parking Garage- Charles St./Beacon St. corner of garage.
By definition, pi is the ratio of the circumference of a circle to its diameter. Pi is always the same number, no matter which circle you use to compute it. For the sake of usefulness people often need to approximate pi.
History of Pi. Pi is a mathematical constant representing the ratio of a circleâs circumference to its diameter. It is represented by the symbol Ï and is most commonly rounded to the number 3.14.However, because it is an irrational number, it cannot be written as a ratio of two integers.i is a mathematical constant representing the ratio of a circleâs circumference to its diameter. It is represented by the symbol Ï and is most commonly rounded to the number 3.14.