14th of March is being celebrated as Pi Day. Pi or π (What is pi?)has always been an interesting Mathematical constant to know about.
Google released a doodle on 14th March to join the Pi Day celebrations.
Here is the logo in case if you haven’t seen.


PI has always been an interesting mathematical constant. Most of the mathematicians in the world are using Pi to derive formulas.
Newton himself worked on the digits of Pi and spent a lot of time using one of the formulas he developed to get a few extra digits.
31 Dec 2009, Fabrice Bellard, a computer programmer/scientist from France, claimed the new world record for calculation of Pi, having it to nearly 2.7 trillion places. He announced that he used his desktop to calculate the 2.7 trillion digits.
By having 2.7 trillion digits, he had broken the previous record of 2.6 trillion digits by Daisuke Takahashi at the University of Tsukuba in Japan. The previous record was set using multi million Super Computers; where as the new record has been set using a desktop computer.
Few of the interesting facts about his findings.
- It took 131 days to calculate 2.7 trillion digits
- Used a desktop of Core i7 CPU at 2.93 GHz, 6 GB of RAM and 7.5 TB hard disks.
- Linux – Red Hat Fedora 10 distribution was used for this calculation.
- Desktop used to calculated the 2.7 trillion digits is worth less than 2000 Euros.
- The base 10 results needs 1137 GB of storage space.
Let us wish him to continue his research to find more. This would definitely give a new dimension to Aribitrary Precision Arithmetic techniques.
September 14th, 2009
Vijay
Pi (π=3.14159) is always an interesting mathematical constant. We all know what is PI? But have you ever thought about the etymology of Pi?
The below picture reveals the secret.

What an amazing coincidence? [via neatorama]

PI is an interesting Mathematical constant (PI=3.14159).
PI constant is something special.
- PI is an irrational number. That is, its value cannot be expressed exactly as a fraction m/n, where m and n are integers.
- Its decimal representation never ends or repeats.
- It is also a transcendental number, which means that no finite sequence of algebraic operations on integers (powers, roots, sums, etc.) can be equal to its value.
We all know the value of PI is approximately 3.14159. This is the approximate value of 5 decimal places.
Do you know the value of PI with 2000 decimal places?
David Webb had created a python script which will create this value.

- Value of pi 2000 – decimal places
Click here to see the approximate value of PI up to 2000 decimal places.
Also visit PI Pictorial Explanation to know more about PI.
February 26th, 2009
Vijay

PI - Pictorial Explanation
Go back to your school days…; Mathematics class…; Geometry lessons…
Pi or π is a mathematical constant whose value is 3.14159. This is the ratio of any circle’s circumference to its diameter.
We all know about the above facts and can give many pages of explanations for the value 3.1.4159.
But the picture given above is sufficient to replace all such explanations.
A picture is worth a thousand words.
Image Credit : Wiki
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