Pi to 10000 digits
Print the true first 10000 decimal digits of pi (embedded, with 3.14159265358979323846264338327950288419716939937510 as the first 50), starting anywhere and for any length; requests beyond 10000 digits raise invalid-digits instead of freezing the page.
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Pi digits
True digits, ready to copy.
Enter a start position to print pi digits
Start: 0 · Digits: 0 · Available: 0
What this tool does
- Teaching: paste the first 100 digits into a slide or demonstrate the randomness of the sequence.
- Check memorisation by printing any window of digits and comparing.
- Feed a genuine long digit string into a big-number or string-handling test.
Example
Input
1
Output
圆周率小数点后第 1 位起的 50 位数字： 3.14159265358979323846264338327950288419716939937510 前 50 位：14159265358979323846264338327950288419716939937510
The first 100 digits contain the famous Feynman point — six 9s at positions 762–767 — but no long runs of zeros.
Frequently asked questions
Are these 10000 digits genuine?
Yes. They are embedded in the page, computed with the Chudnovsky series and cross-checked with an independent Gauss–Legendre computation. The tests assert the first 50 digits 14159265358979323846264338327950288419716939937510, the six 9s at positions 762–767 and the final five digits 75678.
Why is the limit 10000?
That is how many digits are embedded. Going further (say a million) needs a separate data file; generating them in the page would slow the load. Exceeding the limit raises invalid-digits instead of silently truncating.
Where are the six 9s?
Positions 762–767 are 999999 followed by an 8 at 768 — the Feynman point, the classic example of a long run of identical digits in pi.
Can I start anywhere?
Any integer from 1 to 10000. Start plus length must stay within 10000, otherwise it errors; start 5000 with length 10 returns digits 5000–5009.
What is the leading 3.?
The integer part of pi, so the value reads naturally. The raw digit string is the next line of the output.
Keywords：圆周率pi 10000π 前一万位pi digits3.14159圆周率查询pi downloadπ 数字