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  2. Proof that π is irrational - Wikipedia

    en.wikipedia.org/wiki/Proof_that_π_is_irrational

    Then Lambert proved that if is non-zero and rational, then this expression must be irrational. Since tan ⁡ π 4 = 1 {\displaystyle \tan {\tfrac {\pi }{4}}=1} , it follows that π 4 {\displaystyle {\tfrac {\pi }{4}}} is irrational, and thus π {\displaystyle \pi } is also irrational. [ 2 ]

  3. Pi - Wikipedia

    en.wikipedia.org/wiki/Pi

    Swiss scientist Johann Heinrich Lambert in 1768 proved that π is irrational, meaning it is not equal to the quotient of any two integers. [21] Lambert's proof exploited a continued-fraction representation of the tangent function. [96] French mathematician Adrien-Marie Legendre proved in 1794 that π 2 is also irrational.

  4. Chronology of computation of π - Wikipedia

    en.wikipedia.org/wiki/Chronology_of_computation...

    Proved that π is irrational: 1775: Euler Pointed out the possibility that π might be transcendental: 1789: Jurij Vega [21] Calculated 140 decimal places, but not all were correct 126 1794: Adrien-Marie Legendre: Showed that π 2 (and hence π) is irrational, and mentioned the possibility that π might be transcendental. 1824: William ...

  5. Irrational number - Wikipedia

    en.wikipedia.org/wiki/Irrational_number

    Johann Heinrich Lambert proved (1761) that π cannot be rational, and that e n is irrational if n is rational (unless n = 0). [25] While Lambert's proof is often called incomplete, modern assessments support it as satisfactory, and in fact for its time it is unusually rigorous.

  6. A New Formula for Pi Is Here. And It’s Pushing Scientific ...

    www.aol.com/lifestyle/formula-pi-pushing...

    The digits of pi extend into infinity, and pi is itself an irrational number, meaning it can’t be truly represented by an integer fraction (the one we often learn in school, 22/7, is not very ...

  7. Transcendental number - Wikipedia

    en.wikipedia.org/wiki/Transcendental_number

    For example, the square root of 2 is an irrational number, but it is not a transcendental number as it is a root of the polynomial equation x 2 − 2 = 0. The golden ratio (denoted or ) is another irrational number that is not transcendental, as it is a root of the polynomial equation x 2 − x − 1 = 0.

  8. 10 Hard Math Problems That Even the Smartest People in the ...

    www.aol.com/10-hard-math-problems-even-150000090...

    Goldbach’s Conjecture. One of the greatest unsolved mysteries in math is also very easy to write. Goldbach’s Conjecture is, “Every even number (greater than two) is the sum of two primes ...

  9. Ferdinand von Lindemann - Wikipedia

    en.wikipedia.org/wiki/Ferdinand_von_Lindemann

    Carl Louis Ferdinand von Lindemann (12 April 1852 – 6 March 1939) was a German mathematician, noted for his proof, published in 1882, that π (pi) is a transcendental number, meaning it is not a root of any polynomial with rational coefficients.