Brandbest1 (talk | contribs) No edit summary |
No edit summary |
||
Line 1: | Line 1: | ||
− | '''Pi''', the 16<sup>th</sup> [[Greek letter]], written in lowercase as π and capitalized as Π (sometimes written <math>\mathrm{][}</math>), can refer to the following mathematical concepts |
+ | '''Pi''', the 16<sup>th</sup> [[Greek letter]], written in lowercase as π and capitalized as Π (sometimes written <math>\mathrm{][}</math>), can refer to the following mathematical concepts. |
* [[pi (constant)]] - <math>\pi \approx 3.14159\ldots</math>, representing the ratio of a circle's circumference to its diameter (also known as Archimedes' number) |
* [[pi (constant)]] - <math>\pi \approx 3.14159\ldots</math>, representing the ratio of a circle's circumference to its diameter (also known as Archimedes' number) |
Revision as of 01:57, 25 March 2009
Pi, the 16th Greek letter, written in lowercase as π and capitalized as Π (sometimes written ), can refer to the following mathematical concepts.
- pi (constant) - , representing the ratio of a circle's circumference to its diameter (also known as Archimedes' number)
- Product operator Π — e.g., . (See also product of a sequence.) It is functionally similar to summation notation, using , which is the sum of a sequence.
- Prime counting function π(x). (See also prime numbers.)
- The transformation (horizontal shift) of the Gamma function: .
- The reciprocal of its capitalized counterpart: .
- The upside down capital represent Coproducts: