While many theorize that the concept of pi has existed since the Ancient Egyptian Empire, the first 'modern' mathematician to calculate pi with any large degree of accuracy (and record his work) was Archimedes of Ancient Greece.
pi is not equl to 180 degree but it is often simplified as 22/7, it is used to calculate area of circles,etc A circle is 360 degree
For the vast majority of day-to-day uses, pi is quoted as 3.14. This is equivalent to 3 significant figures, 2 decimal places, or pi 'to the nearest hundreth'.
William Shanks is not known to have created any number - rational or irrational. He did calculate pi to a greater degree of accuracy then previously but the number pi had been discovered around 4 thousand years before Shanks. Therefore it can hardly be said that he discovered it.
You can also use formulas to calculate pi. they are best used when plugged into a program, but they are still very slow. James Gregory's formula is: pi = 4*(1-1/3+1/5-1/7...) A simple program to calculate pi using his formula is this (python programming language): def pi(accuracy): <tab>pi = 0.0 <tab>minus = 1.0 <tab>for i in xrange(1,accuracy): <tab><tab>minus = -minus <tab><tab>pi += minus/(i*2-1) <tab>return pi*4 replace the <tab> with an actual tab (the editor doesn't support tabs) Run it, than type in pi(accuracy) in the console, but replace accuracy with how accurate you want it to be. But unfortunately it doesn't get very far, and it's not built to be quick or get vary far, it's just an example. if you want to, you can multithread it and make it capable of using larger number, like writing to a file as it calculates. the actual digits of pi are these: 3.141592653589792324683846443746375843658475673548356786758346584564856643756655685764747473832883744765657473828911010102029939393838484848474774755656567488382991910101020202939393384848477575666757575848484939393929928293828337u8473565867467575647563853364973947248923343710308321038130183487329743758436573486543785635873538629423984328742748297289332932193182321301823217493887840328480284023843270705720520084703324623598746873467835834563856985634785358346537856829348329481037u120308702137103713139019309`0237121023130813943827647834584358538482382348678236284673284564757736478367284637468366565647347382828374765
There are different methods for estimating irrational numbers. For numbers like pi or e, there are infinite series which can be used to calculate their value to the required degree of accuracy. There are numerical methods - such as the Newton-Raphson iteration - for estimating roots of numbers.
Pi can be used to calculate the area of a circle Pi can be used to calculate the circumference of a circle
1/4 pi to find the degree in terms of pi, divide the degree by 180 in this example, 45 / 180 = 1/4
pi in fractional form is calculated by dividing the circumference of any circle by its diameter. The accuracy of pi depends on the accuracy on the measurements taken.
pi is an irrational number and one characteristic of irrational numbers is that their decimal representation is neither terminating nor recurrent. This is also true for any other base for counting (other than pi itself). Also, pi is a transcendental number and so cannot be represented as a sum of algebraic operation on integers. Although the value of pi has been calculated to an accuracy of over a trillion digits, only 40 digits are required to calculate the circumference of the observable universe to the accuracy of the size of a hydrogen atom!
Pi = circumference/diameter
No. Pi is a finite number.