math constant
Explanation
The crossword clue "math constant" has the answer "PI".The answer 'PI' fits the clue 'math constant' because it refers to the mathematical constant representing the ratio of a circle's circumference to its diameter, approximately equal to 3.14159. In crossword context, 'math constant' is a direct clue for 'PI' due to its significance in mathematics and its common usage in puzzles.
Word Origin & Etymology
The word 'pi' comes from the Greek letter π, which is the symbol used to represent this mathematical constant. The concept of the ratio of a circle's circumference to its diameter has been known for thousands of years, but the symbol π to represent it was introduced by Welsh mathematician William Jones in 1706.
Interesting Facts
- The first recorded algorithm for calculating the value of pi was by the ancient Babylonians around 2000 BC.
- In 1897, the Indiana Pi Bill attempted to legislate a different value for pi, which was a humorous and failed attempt to redefine the mathematical constant.
- Pi has been calculated to over one trillion digits with the help of supercomputers, but for most practical purposes, a few decimal places are sufficient.
Related Crossword Clues
- •Circle ratio symbol
- •Ratio of a circle's circumference to its diameter
- •Constant in math involving circles
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