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*It is denoted by the Greek letter <math>\pi</math>.
*It is denoted by the Greek letter <math>\pi</math>.
*<math>\pi</math> is commonly defined as the ratio of a circle's circumference C to its diameter d.
*<math>\pi</math> is commonly defined as the ratio of a circle's circumference C to its diameter d.
*So <math>\pi</math>=\frac{C}{d}</math>, the ratio <math>\frac{C}{d}</math> is constant, and it is not considering the circle's size.
*So <math>\pi</math>=<math>\frac{C}{d}</math>, the ratio <math>\frac{C}{d}</math> is constant, and it is not considering the circle's size.
*<math>\pi</math> is a transcendental number and irrational number.
*<math>\pi</math> is a transcendental number and irrational number.
*Being an irrational number,π cannot be expressed exactly as a ratio of any two integers ,but we can express as the fraction 22/7 is approximate to the <math>\pi</math> value.
*Being an irrational number,π cannot be expressed exactly as a ratio of any two integers ,but we can express as the fraction 22/7 is approximate to the <math>\pi</math> value.
==Examples==
==Examples==
# PIGEN = 3.1
# PIGEN(14) = 3.141
# PIGEN() = 3.141592653589793238477496625589926410505632020
==See Also==
==See Also==
*[[ Z3 | Z3 home ]]
*[[ Z3 | Z3 home ]]