Radix

In mathematical numeral systems, the radix or base is the number of unique digits, including zero, used to represent numbers in a positional numeral system. For example, for the decimal system (the most common system in use today) the radix is ten, because it uses the ten digits from 0 through 9.

In any standard positional numeral system, the number x and its base y are conventionally written as (x)_y, although for base ten the subscript is usually assumed and not written, as it is the most common way to express value. For example, (100)_{10} (in the decimal system) represents the number one hundred, while (100)_2 (in the binary system with base 2) represents the number four.

Etymology

Radix is a Latin word for "root". Root can be considered a synonym for base in the arithmetical sense.

In numeral systems

In the system with radix 13, for example, a string of digits such as 398 denotes the number 3 \times 13^2 + 9 \times 13^1 + 8 \times 13^0.

More generally, in a system with radix b (b > 1), a string of digits d_1 \ldots d_n denotes the number d_1 b^{n-1} + d_2 b^{n-2} + \cdots +  d_n b^0, where  0\leq d_i < b .

Commonly used numeral systems include:

Radix (disambiguation)

A radix, or base, is the number of unique digits, including zero, used to represent numbers in a positional numeral system.

Radix may also refer to:

Mathematics and science

  • Root (Latin: radix), of a plant
  • Radix (gastropod), a genus of freshwater snails
  • Radical symbol (√), used to indicate a root
  • Indole-3-butyric acid
  • Computing

  • Radix point, a symbol used in mathematics to separate the integral part of the number from its fractional part
  • Radix sort, a computer sorting algorithm
  • Radix tree, a type of set data structure
  • RADIX-50, a character encoding
  • Entertainment

  • Radix Ace Entertainment, a Japanese Animation studio
  • Radix Tetrad, a science fiction novel series by A. A. Attanasio
  • Radix (novel), the first novel, published in 1981
  • Radix: Beyond the Void, a 1995 first-person shooter video game
  • See also

  • Root (disambiguation)
  • Radix (gastropod)

    Radix is a genus of air-breathing freshwater snails, aquatic pulmonate gastropods in the family Lymnaeidae, the pond snails.

    The genus Radix has a Palaearctic distribution.

    Phylogeny

    Correa et al. (2010) confirmed that the placement of these species within the genus Radix reflected their phylogenetic relationship. A cladogram showing phylogenic relations of species in the genus Radix:

    The haploid number of chromosomes of all species in the genus Radix is 17 (n=17).

    Species

    The taxonomic status of certain species in the genus Radix has been disputed. Remigio (2002) reported sequence divergence within the 16S mitochondrial gene of Radix peregra and Radix ovata. Furthermore, the shell morphology and alloenzyme data indicated that Radix peregra and Radix ovata are distinct.

    In contrast, Bargues et al. (2001) considered on the basis of ITS-2 sequence analysis, that R. peregra, R. ovata, and R. balthica are in fact a conspecific species.

  • Radix (Lytostoma) grammica'' (Brusina, 1872)
  • Podcasts:

    Radix

    ALBUMS

    RADIx

    ALBUMS

    Say Yes

    Released 2010
    PLAYLIST TIME:

    Truth

    by: Rodox

    Kill your hate
    Gotta reborn
    Feed your faith
    No more pain, no more
    Let your soul
    Fly away
    Let it flow
    In your veins
    Cause the truth is in our hearts
    Forget your flesh
    Got to save your soul
    You will find the truth
    Inside you!




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