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  2. Real number - Wikipedia

    en.wikipedia.org/wiki/Real_number

    These two representations are identical, unless x is a decimal fraction of the form . In this case, in the first decimal representation, all a n {\displaystyle a_{n}} are zero for n > h , {\displaystyle n>h,} and, in the second representation, all a n {\displaystyle a_{n}} 9.

  3. Calculator - Wikipedia

    en.wikipedia.org/wiki/Calculator

    Also, some fractions (such as 1 ⁄ 7, which is 0.14285714285714; to 14 significant figures) can be difficult to recognize in decimal form; as a result, many scientific calculators are able to work in vulgar fractions or mixed numbers.

  4. Binary number - Wikipedia

    en.wikipedia.org/wiki/Binary_number

    The base-2 numeral system is a positional notation with a radix of 2.Each digit is referred to as a bit, or binary digit.Because of its straightforward implementation in digital electronic circuitry using logic gates, the binary system is used by almost all modern computers and computer-based devices, as a preferred system of use, over various other human techniques of communication, because ...

  5. Pi - Wikipedia

    en.wikipedia.org/wiki/Pi

    The number π (/ p aɪ / ⓘ; spelled out as "pi") is a mathematical constant, approximately equal to 3.14159, that is the ratio of a circle's circumference to its diameter.It appears in many formulae across mathematics and physics, and some of these formulae are commonly used for defining π, to avoid relying on the definition of the length of a curve.

  6. Microsoft Binary Format - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Binary_Format

    Altair BASIC took off, and soon most early home computers ran some form of Microsoft BASIC. [17] [18] The BASIC port for the 6502 CPU, such as used in the Commodore PET, took up more space due to the lower code density of the 6502. Because of this it would likely not fit in a single ROM chip together with the machine-specific input and output code.

  7. Undecimal - Wikipedia

    en.wikipedia.org/wiki/Undecimal

    That is, fractions aren't difficult to compare if the numerator is 1 (e.g., 1 ⁄ 2 is larger than 1 ⁄ 3, which in turn is larger than 1 ⁄ 4). However, comparisons become more difficult when both numerators and denominators are mixed: 3 ⁄ 4 is larger than 5 ⁄ 7 , which in turn is larger than 2 ⁄ 3 , though this cannot be determined by ...

  8. Anti-Life Equation - Wikipedia

    en.wikipedia.org/wiki/Anti-Life_Equation

    The Anti-Life Equation is a fictional concept appearing in American comic books published by DC Comics.In Jack Kirby's Fourth World setting, the Anti-Life Equation is a formula for total control over the minds of sentient beings that is sought by Darkseid, who, for this reason, sends his forces to Earth, as he believes part of the equation exists in the subconsciousness of humanity. [1]