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  2. Greedy algorithm for Egyptian fractions - Wikipedia

    en.wikipedia.org/wiki/Greedy_algorithm_for...

    Every fraction2 / y ⁠ requires two terms in its greedy expansion if and only if y ≡ 1 (mod 2); the simplest such fraction is ⁠ 2 / 3 ⁠. A fraction3 / y ⁠ requires three terms in its greedy expansion if and only if y ≡ 1 (mod 6), for then −y mod x = 2 and ⁠ y(y + 2) / 3 ⁠ is odd, so the fraction remaining after a ...

  3. Egyptian fraction - Wikipedia

    en.wikipedia.org/wiki/Egyptian_fraction

    For instance, Fibonacci represents the fraction ⁠ 8 / 11 ⁠ by splitting the numerator into a sum of two numbers, each of which divides one plus the denominator: ⁠ 8 / 11 ⁠ = ⁠ 6 / 11 ⁠ + ⁠ 2 / 11 ⁠. Fibonacci applies the algebraic identity above to each these two parts, producing the expansion ⁠ 8 / 11 ⁠ = ⁠ 1 / 2 ...

  4. Calculator input methods - Wikipedia

    en.wikipedia.org/wiki/Calculator_input_methods

    The TI-108 is a simple four-function calculator which uses single-step execution.. The immediate execution mode of operation (also known as single-step, algebraic entry system (AES) [7] or chain calculation mode) is commonly employed on most general-purpose calculators.

  5. Clearing denominators - Wikipedia

    en.wikipedia.org/wiki/Clearing_denominators

    Simplifying this further gives us the solution x = −3. It is easily checked that none of the zeros of x ( x + 1)( x + 2) – namely x = 0 , x = −1 , and x = −2 – is a solution of the final equation, so no spurious solutions were introduced.

  6. Fractional calculus - Wikipedia

    en.wikipedia.org/wiki/Fractional_calculus

    In particular, the function Mittag-Leffler has a particular case , which is the exponential function, the Mittag-Leffler distribution of order is therefore an exponential distribution. However, for α ∈ ( 0 , 1 ) {\displaystyle \alpha \in (0,1)} , the Mittag-Leffler distributions are heavy-tailed .

  7. Symbolab - Wikipedia

    en.wikipedia.org/wiki/Symbolab

    Symbolab is an answer engine [1] that provides step-by-step solutions to mathematical problems in a range of subjects. [2] It was originally developed by Israeli start-up company EqsQuest Ltd., under whom it was released for public use in 2011. In 2020, the company was acquired by American educational technology website Course Hero. [3] [4]

  8. Irreducible fraction - Wikipedia

    en.wikipedia.org/wiki/Irreducible_fraction

    For example, ⁠ 1 / 4 ⁠, ⁠ 5 / 6 ⁠, and ⁠ −101 / 100 ⁠ are all irreducible fractions. On the other hand, ⁠ 2 / 4 ⁠ is reducible since it is equal in value to ⁠ 1 / 2 ⁠, and the numerator of ⁠ 1 / 2 ⁠ is less than the numerator of ⁠ 2 / 4 ⁠. A fraction that is reducible can be reduced by dividing both the numerator ...

  9. Heaviside cover-up method - Wikipedia

    en.wikipedia.org/wiki/Heaviside_cover-up_method

    When a partial fraction term has a single (i.e. unrepeated) binomial in the denominator, the numerator is a residue of the function defined by the input fraction. We calculate each respective numerator by (1) taking the root of the denominator (i.e. the value of x that makes the denominator zero) and (2) then substituting this root into the ...