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  1. N points on a circle the probability that they are all within a semicircle

    N points on a circle the probability that they are all within a semicircle

  2. Why does zero correlation not imply independence: many counter example

    Why does zero correlation not imply independence: many counter example

  3. Bound for the correlation of general n random variables

    Bound for the correlation of general n random variables

  4. N people arrive separately to a dinner : Probability Exercise

    N people arrive separately to a dinner : Probability Exercise

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  5. Minimum Comparisons to find Second Largest Element (also kth)

    Minimum Comparisons to find Second Largest Element (also kth)

  6. 7 is the only Prime followed by a Cube? What's more? how about quartic

    7 is the only Prime followed by a Cube? What's more? how about quartic

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  9. Integral of 1/sqrt{x^2+1}, Integral of 1/sqrt{x^2-1}, Integral of 1/sqrt{1-x^2}

    Integral of 1/sqrt{x^2+1}, Integral of 1/sqrt{x^2-1}, Integral of 1/sqrt{1-x^2}

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  10. Can you prove this: square root of 2 of 2= square root of 2 to the power square root of 2

    Can you prove this: square root of 2 of 2= square root of 2 to the power square root of 2

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  11. Find eigenvalues of matrix with all same element

    Find eigenvalues of matrix with all same element

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  12. 黎曼猜想 What is Riemann hypothesis (14): Higher L function

    黎曼猜想 What is Riemann hypothesis (14): Higher L function

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  13. Cardano’s formula: Cubic equation

    Cardano’s formula: Cubic equation

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  14. Trigonometry: Product of sin(kpi/n) from k=1 to n-1

    Trigonometry: Product of sin(kpi/n) from k=1 to n-1

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  15. sum of the reciprocals of the primes is divergent

    sum of the reciprocals of the primes is divergent

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  16. Monroe Doctrine Confirmed, First Unelected VP of US, Jean Eugène Robert-Houdin and More! - TDH

    Monroe Doctrine Confirmed, First Unelected VP of US, Jean Eugène Robert-Houdin and More! - TDH

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  17. Complex contour: Integral of ln(x)/(x^2+1) and ln(x)^2/(x^2+1)

    Complex contour: Integral of ln(x)/(x^2+1) and ln(x)^2/(x^2+1)

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  19. Introduction to Pythagorean quadruple

    Introduction to Pythagorean quadruple

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  20. Prove Isserlis theorem and Wick theorem

    Prove Isserlis theorem and Wick theorem

  21. 黎曼猜想 What is Riemann hypothesis (15) Zeta function 在0點的微分，無限大階乘

    黎曼猜想 What is Riemann hypothesis (15) Zeta function 在0點的微分，無限大階乘

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  22. Volume of sphere, Cone, Pyramid

    Volume of sphere, Cone, Pyramid

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