The ratio of a circle's circumference to its diameter, often denoted p. Pi is an irrational constant equal to approximately 3.14159.
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Diameter |
For a circle with a given radius (r), pi can be used to calculate its area (p r2 ) and circumference (2p r). Based on this relationship, pi can also be used to determine the volume and surface area of cones and cylinders, and to calculate related phenomena such as liquid flow rates and frequency of pendulum cycles.
In statistics, pi is used in the formula to calculate the probability density function for the normal distribution, and the variance of the logistic and extreme value distributions.
In Minitab, you can use the Calculator to return a value for pi. Minitab stores pi as constant K1000.
