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  2. Exponentiation - Wikipedia

    en.wikipedia.org/wiki/Exponentiation

    For example, 3 5 = 3 · 3 · 3 · 3 · 3 = 243. The base 3 appears 5 times in the multiplication, because the exponent is 5. Here, 243 is the 5th power of 3, or 3 raised to the 5th power. The word "raised" is usually omitted, and sometimes "power" as well, so 3 5 can be simply read "3 to the 5th", or "3 to the 5".

  3. Rule of three (writing) - Wikipedia

    en.wikipedia.org/wiki/Rule_of_three_(writing)

    The rule of three can refer to a collection of three words, phrases, sentences, lines, paragraphs/stanzas, chapters/sections of writing and even whole books. [2] [4] The three elements together are known as a triad. [5] The technique is used not just in prose, but also in poetry, oral storytelling, films, and advertising.

  4. Trinomial expansion - Wikipedia

    en.wikipedia.org/wiki/Trinomial_expansion

    Layers of Pascal's pyramid derived from coefficients in an upside-down ternary plot of the terms in the expansions of the powers of a trinomial – the number of terms is clearly a triangular number. In mathematics, a trinomial expansion is the expansion of a power of a sum of three terms into monomials. The expansion is given by

  5. Powerful number - Wikipedia

    en.wikipedia.org/wiki/Powerful_number

    A powerful number is a positive integer m such that for every prime number p dividing m, p 2 also divides m.Equivalently, a powerful number is the product of a square and a cube, that is, a number m of the form m = a 2 b 3, where a and b are positive integers.

  6. Rule of three (statistics) - Wikipedia

    en.wikipedia.org/wiki/Rule_of_three_(statistics)

    By symmetry, for only successes, the 95% confidence interval is [1−3/ n,1]. The rule is useful in the interpretation of clinical trials generally, particularly in phase II and phase III where often there are limitations in duration or statistical power. The rule of three applies well beyond medical research, to any trial done n times. If 300 ...

  7. Power law - Wikipedia

    en.wikipedia.org/wiki/Power_law

    The equivalence of power laws with a particular scaling exponent can have a deeper origin in the dynamical processes that generate the power-law relation. In physics, for example, phase transitions in thermodynamic systems are associated with the emergence of power-law distributions of certain quantities, whose exponents are referred to as the ...

  8. Cube (algebra) - Wikipedia

    en.wikipedia.org/wiki/Cube_(algebra)

    y = x 3 for values of 1 ≤ x ≤ 25. In arithmetic and algebra, the cube of a number n is its third power, that is, the result of multiplying three instances of n together. The cube of a number or any other mathematical expression is denoted by a superscript 3, for example 2 3 = 8 or (x + 1) 3. The cube is also the number multiplied by its square:

  9. Power of Three - Wikipedia

    en.wikipedia.org/wiki/Power_of_Three

    Power of Three may refer to: Power of three, a number of the form 3 n; Third power, a number of the form n 3; Power of Three, a novel by Diana Wynne Jones; Power of Three (Fatso Jetson album) Power of Three (Michel Petrucciani album) Power of Three "The Power of Three" "The Power of Three", an episode of Teenage Mutant Ninja Turtles