Pi(e) Day Crossword by Mel Mai

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Across
  1. 4. The number that doesn't show up within the first 31 digits.
  2. 9. The use of pi became popular after it was adopted this Swiss mathematician.
  3. 11. A refined value of pi was obtained by the ___. (Mel Mai tip: think Asian for once.)
  4. 14. Its present in what mammal's genetic code.
  5. 15. The father of calculus calculated pi to at least 16 decimal places.
  6. 18. Pi is the ratio of a circle’s circumference to its ___.
  7. 20. What event is celebrated on July 22?
  8. 21. The symbol of Pi was introduce by ____ ____ in 1706.
  9. 22. Proved by Ferdinand Lindemann in 1882 that pi is this
  10. 23. A dialect in which the numbers of letters in successive words match the digits of pi.
  11. 24. Writer of one of the earliest known records of pi.
  12. 25. When backwards, what word does 3.14 spell?
Down
  1. 1. Pi is an ___ number.
  2. 2. An ancient Greek mathematician who discovered the first three digits of pi.
  3. 3. Pi radians is 180 ___.
  4. 5. A German-born theoretical physicist who was born on March 14 (3.14)
  5. 6. During a famous murder trial, the judge and FBI agent tried to show off their smarts by debating the value of pi.
  6. 7. Series in which Spock fooled an evil computer by asking it to calculate the last digit of Pi.
  7. 8. The letter π is the first letter of the Greek word.
  8. 10. The person who tried to approximate Pi by squaring the circle.
  9. 12. The name for the first 36 digits.
  10. 13. ___established the constant circle ratio as 3 1/8 or 3.125.
  11. 16. The name of which at position 763, there are six nines in a row.
  12. 17. Pi has been calculated to more than a ___ digits.
  13. 19. The brand of a men’s cologne named Pi.