Pi (letter)

Pi (uppercase/lowercase Π π), is the letter of the Greek alphabet, used to represent the "p" sound in Ancient and Modern Greek. In the system of Greek numerals, it had a value of 80. Letters that came from it include the Roman P and Cyrillic П.

In mathematics, the uppercase pi is used for the Pi product operator (for example. $\Pi _{i=1}^{5}i=5!$ ),^[1] similar to the way summation is used. The lowercase pi is used as the mathematical constant pi, also known as Archimedes's constant.^[2]

Related pages change

Phi
Tau

References change

↑ "Greek/Hebrew/Latin-based Symbols in Mathematics". Math Vault. 2020-03-20. Retrieved 2020-09-22.
↑ "Pi Symbol in Greek Alphabet". www.greeksymbols.net. Retrieved 2020-09-22.

This short article about Europe can be made longer. You can help Wikipedia by adding to it.

[1] "Greek/Hebrew/Latin-based Symbols in Mathematics". Math Vault. 2020-03-20. Retrieved 2020-09-22.

[2] "Pi Symbol in Greek Alphabet". www.greeksymbols.net. Retrieved 2020-09-22.

[1]

[2]