Pi world record calculation broken by Google employee Emma Haruka Iwao

Pi dream: Googler sets record for most digits calculated

Google’s Emma Haruka Iwao calculates most accurate value of Pi, breaks Guinness World Record

Rather than contenting herself with a slice of fruit in pastry, Google employee Emma Haruka Iwao has used the company's cloud computing technology to set a new record for calculating the value of pi.

They made their announcement today, on Pi day which falls on March 14th, or 3.14, the United States format of the date, in its most basic form.

Pi is the ratio of the circumference of a circle to its diameter. This is nearly 9 trillion digits more than the previous world record, which was set in November 2016 by Peter Trueb.

Iwao found the digits with the help of Google Cloud in the Japanese city of Osaka, some 400km west of Tokyo, where she works as a developer and advocate. It required 1.4TB of memory and 240TB of SSD-based storage (it is the first Pi record to use SSDs).

She said the calculation took about 121 days to complete - with zero breaks, otherwise it would have been disrupted. During the entire time it took for calculations, the Google Cloud server were kept switched on to avoid any interruptions. In a blog post, Emma said that they managed to successfully compute the Pi value to 31.4 trillion decimal places or 31,415,926,535,897.

Iwao has been interested in the famous irrational number from an early age.

For years, mathematicians and computer scientists have raced to calculate ever more digits of Pi. The previous world record was 22.4 trillion digits and it was achieved back in November, 2016 by Peter Trueb.

'When I was a kid, I didn't have access to supercomputers But even if you don't work for Google, you can apply for various scholarships and programs to access computing resources. Later, when she was at university, she was fortunate enough to study under Dr Daisuke Takanashi, who held the record for most accurate Pi calculation at the time.

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