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  2. Algorithms for calculating variance - Wikipedia

    en.wikipedia.org/wiki/Algorithms_for_calculating...

    This algorithm can easily be adapted to compute the variance of a finite population: simply divide by n instead of n − 1 on the last line.. Because SumSq and (Sum×Sum)/n can be very similar numbers, cancellation can lead to the precision of the result to be much less than the inherent precision of the floating-point arithmetic used to perform the computation.

  3. Weighted automaton - Wikipedia

    en.wikipedia.org/wiki/Weighted_automaton

    Hasse diagram of some classes of quantitative automata, ordered by expressiveness. [1]: Fig.1 In theoretical computer science and formal language theory, a weighted automaton or weighted finite-state machine is a generalization of a finite-state machine in which the edges have weights, for example real numbers or integers.

  4. Multiplicative weight update method - Wikipedia

    en.wikipedia.org/wiki/Multiplicative_Weight...

    The hedge algorithm is similar to the weighted majority algorithm. However, their exponential update rules are different. [2] It is generally used to solve the problem of binary allocation in which we need to allocate different portion of resources into N different options. The loss with every option is available at the end of every iteration.

  5. Maximum weight matching - Wikipedia

    en.wikipedia.org/wiki/Maximum_weight_matching

    In computer science and graph theory, the maximum weight matching problem is the problem of finding, in a weighted graph, a matching in which the sum of weights is maximized. A special case of it is the assignment problem , in which the input is restricted to be a bipartite graph , and the matching constrained to be have cardinality that of the ...

  6. Python (programming language) - Wikipedia

    en.wikipedia.org/wiki/Python_(programming_language)

    Python is used extensively in the information security industry, including in exploit development. [231] [232] Most of the Sugar software for the One Laptop per Child XO, developed at Sugar Labs as of 2008, is written in Python. [233] The Raspberry Pi single-board computer project has adopted Python as its main user-programming language.

  7. Complex data type - Wikipedia

    en.wikipedia.org/wiki/Complex_data_type

    The Go programming language has built-in types complex64 (each component is 32-bit float) and complex128 (each component is 64-bit float). Imaginary number literals can be specified by appending an "i". The Perl core module Math::Complex provides support for complex numbers. Python provides the built-in complex type. Imaginary number literals ...

  8. Wilshire 5000 - Wikipedia

    en.wikipedia.org/wiki/Wilshire_5000

    The difference between the full capitalization, float-adjusted, and equal weight versions is in how the index components are weighted. The full cap index uses the total shares outstanding for each company. The float-adjusted index uses shares adjusted for free float. The equal-weighted index assigns each security in the index the same weight.

  9. NIFTY 50 - Wikipedia

    en.wikipedia.org/wiki/NIFTY_50

    The NIFTY 50 index is a free float market capitalisation-weighted index. Stocks are added to the index based on the following criteria: [1] Must have traded at an average impact cost of 0.50% or less during the last six months for 90% of the observations, for the basket size of Rs. 100 Million. The company should have a listing history of 6 months.