Analysis of information sources in references of the Wikipedia article "Pi (letter)" in English language version.
Also known as: pion
π – the inflation rate
The projection operation is a unary operation that is performed on a relation. A projection operation is used to retrieve all the values of one or more attributes. It is denoted by π.
If you work with plaintiffs, you may choose to replace the word "plaintiff" with a symbol in some of your writing. The plaintiff symbol looks like the Greek letter pi (π).
The constant pi, denoted π, is a real number defined as the ratio of a circle's circumference C to its diameter
The prime counting function is the function π(x) giving the number of primes less than or equal to...