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  2. List of probability distributions - Wikipedia

    en.wikipedia.org/wiki/List_of_probability...

    With finite support. The Bernoulli distribution, which takes value 1 with probability p and value 0 with probability q = 1 − p. The Rademacher distribution, which takes value 1 with probability 1/2 and value −1 with probability 1/2. The binomial distribution, which describes the number of successes in a series of independent Yes/No ...

  3. List of random number generators - Wikipedia

    en.wikipedia.org/wiki/List_of_random_number...

    Widely used in many programs, e.g. it is used in Excel 2003 and later versions for the Excel function RAND [8] and it was the default generator in the language Python up to version 2.2. [9] Rule 30: 1983 S. Wolfram [10] Based on cellular automata. Inversive congruential generator (ICG) 1986 J. Eichenauer and J. Lehn [11] Blum Blum Shub: 1986

  4. List of hash functions - Wikipedia

    en.wikipedia.org/wiki/List_of_hash_functions

    Name Length Type Pearson hashing: 8 bits (or more) XOR/table Paul Hsieh's SuperFastHash [1] 32 bits Buzhash: variable XOR/table Fowler–Noll–Vo hash function (FNV Hash) 32, 64, 128, 256, 512, or 1024 bits xor/product or product/XOR Jenkins hash function: 32 or 64 bits XOR/addition Bernstein's hash djb2 [2] 32 or 64 bits shift/add or mult/add

  5. List of mathematical functions - Wikipedia

    en.wikipedia.org/wiki/List_of_mathematical_functions

    The integral of the Dirac delta function. Saw-tooth wave. Square wave. Triangle wave. Rectangular function. Floor function: Largest integer less than or equal to a given number. Ceiling function: Smallest integer larger than or equal to a given number. Sign function: Returns only the sign of a number, as +1 or −1.

  6. Random number generation - Wikipedia

    en.wikipedia.org/wiki/Random_number_generation

    Random number generation is a process by which, often by means of a random number generator ( RNG ), a sequence of numbers or symbols that cannot be reasonably predicted better than by random chance is generated. This means that the particular outcome sequence will contain some patterns detectable in hindsight but impossible to foresee.

  7. List of chemical elements - Wikipedia

    en.wikipedia.org/wiki/List_of_chemical_elements

    List of chemical elements. 118 chemical elements have been identified and named officially by IUPAC. A chemical element, often simply called an element, is a type of atom which has a specific number of protons in its atomic nucleus (i.e., a specific atomic number, or Z ). [1]

  8. List of equations - Wikipedia

    en.wikipedia.org/wiki/List_of_equations

    Ampère's circuital law. Bernoulli's equation. Bogoliubov–Born–Green–Kirkwood–Yvon hierarchy of equations. Bessel's differential equation. Boltzmann equation. Borda–Carnot equation. Burgers' equation. Darcy–Weisbach equation. Dirac equation.

  9. Microsoft Excel Functions for Data Cleaning

    ies.ed.gov/ncee/edlabs/regions/central/resources/...

    Removes spaces from beginning and end of text. =TRIM(A2:A300) CLEAN. Removes all nonprintable characters from text. =CLEAN(A2:A300) SUBSTITUTE. Substitutes one or more instances of a given character with new character. For example, the formula on the right will substitute all instances of 1 with a 3 in cell C2.