3.14
The number for pi is: 3.1415926535897932384626433832795
3.141592653789 etc
'About' means 'Approximately.'. pi is about 3.14 pi is approximately 3.14 pi is NOT equal to 3.14 pi is an irrational numbers which means that the decimals go to infinity. So any value given for 'pi' is only an approximation/about. pi ~ 3.14 pi~ 3.1416 pi ~ 3.141592 pi = 3.141592....
half pi is 1/2 x 3.14 = 1.57
pi (literally and i dont mean the eating pie. by pi i mean in math it never ends)
Pi is when you multiply the diameter in a circle times 3.14. 3.14 = pi.
The term pi comes from the greek letter pi, which is the first letter of the word which in English is "perimeter".
In math terms, pi, means 3.14, which is a everlasting decimal, that is just rounded to make your math easier. So pi, means 3.14 in math terms.
Pi is a math word that begins with the letter "p". also Pythagorean theorem starts with p.
Pi=3.14 in basic math
If you mean behind a person's name it means Private Investigator. If you are referring to math PI=3.14159265359 ...
It isn't clear what you mean. I don't think that "pi form" is a commonly used math term.