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  2. Factorial - Wikipedia

    en.wikipedia.org/wiki/Factorial

    In mathematics, the factorial of a non-negative integer, denoted by ! , is the product of all positive ... Multiply together the results of the two previous steps;

  3. Double factorial - Wikipedia

    en.wikipedia.org/wiki/Double_factorial

    The term odd factorial is sometimes used for the double factorial of an odd number. [5] [6] The term semifactorial is also used by Knuth as a synonym of double ...

  4. Falling and rising factorials - Wikipedia

    en.wikipedia.org/wiki/Falling_and_rising_factorials

    These symbols are collectively called factorial powers. [2] The Pochhammer symbol, introduced by Leo August Pochhammer, is the notation (), where n is a non-negative integer. It may represent either the rising or the falling

  5. Multiplicative partitions of factorials - Wikipedia

    en.wikipedia.org/wiki/Multiplicative_partitions...

    Multiplicative partitions of factorials are expressions of values of the factorial function as products of powers of prime numbers. They have been studied by Paul Erdős and others. [1] [2] [3] The factorial of a positive integer is a product of decreasing integer factors, which can in turn be factored into prime numbers.

  6. Gamma function - Wikipedia

    en.wikipedia.org/wiki/Gamma_function

    In mathematics, the gamma function (represented by Γ, capital Greek letter gamma) is the most common extension of the factorial function to complex numbers.Derived by Daniel Bernoulli, the gamma function () is defined for all complex numbers except non-positive integers, and for every positive integer =, () = ()!.

  7. Computational complexity of mathematical operations - Wikipedia

    en.wikipedia.org/wiki/Computational_complexity...

    Graphs of functions commonly used in the analysis of algorithms, showing the number of operations versus input size for each function. The following tables list the computational complexity of various algorithms for common mathematical operations.

  8. 8 Real Ways To Multiply Your Money - AOL

    www.aol.com/finance/8-real-ways-multiply-money...

    One of the best ways to multiply your money is to invest it on the stock exchange, said Adam Wood, co-founder of Revenue Geeks. "Since 2000, the S&P 500, a leading stock market index, has ...

  9. Factorial number system - Wikipedia

    en.wikipedia.org/wiki/Factorial_number_system

    The factorial number system is a mixed radix numeral system: the i-th digit from the right has base i, which means that the digit must be strictly less than i, and that (taking into account the bases of the less significant digits) its value is to be multiplied by (i − 1)!