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  2. One-way function - Wikipedia

    en.wikipedia.org/wiki/One-way_function

    Such a function is hard to invert unless some secret information, called the trapdoor, is known. A collision-free hash function f is a one-way function that is also collision-resistant; that is, no randomized polynomial time algorithm can find a collision—distinct values x, y such that f(x) = f(y)—with non-negligible probability. [4]

  3. Python (programming language) - Wikipedia

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

    Nuitka compiles Python into C. [164] It works with Python 3.4 to 3.12 (and 2.6 and 2.7), for Python's main supported platforms (and Windows 7 or even Windows XP) and for Android. It claims complete support for Python 3.10, some support for 3.11 and 3.12 and experimental support for Python 3.13.

  4. Python syntax and semantics - Wikipedia

    en.wikipedia.org/wiki/Python_syntax_and_semantics

    Numeric literals in Python are of the normal sort, e.g. 0, -1, 3.4, 3.5e-8. Python has arbitrary-length integers and automatically increases their storage size as necessary. Prior to Python 3, there were two kinds of integral numbers: traditional fixed size integers and "long" integers of arbitrary size.

  5. Higher-order function - Wikipedia

    en.wikipedia.org/wiki/Higher-order_function

    In mathematics and computer science, a higher-order function (HOF) is a function that does at least one of the following: takes one or more functions as arguments (i.e. a procedural parameter, which is a parameter of a procedure that is itself a procedure), returns a function or value as its result. All other functions are first-order functions.

  6. Factory (object-oriented programming) - Wikipedia

    en.wikipedia.org/wiki/Factory_(object-oriented...

    In class-based programming, a factory is an abstraction of a constructor of a class, while in prototype-based programming a factory is an abstraction of a prototype object. A constructor is concrete in that it creates objects as instances of one class, and by a specified process (class instantiation), while a factory can create objects by instantiating various classes, or by using other ...

  7. Iterated function - Wikipedia

    en.wikipedia.org/wiki/Iterated_function

    The computation of f(π ⁄ 6) = 1 ⁄ 2 = g 5 (π ⁄ 6) is shown. The notion f 1/n must be used with care when the equation g n (x) = f(x) has multiple solutions, which is normally the case, as in Babbage's equation of the functional roots of the identity map.

  8. Virtual function - Wikipedia

    en.wikipedia.org/wiki/Virtual_function

    For this reason, calling virtual functions in constructors is generally discouraged. In C++, the "base" function is called. Specifically, the most derived function that is not more derived than the current constructor or destructor's class is called. [7]: §15.7.3 [8] [9] If that function is a pure virtual function, then undefined behavior occurs.

  9. List of weight training exercises - Wikipedia

    en.wikipedia.org/wiki/List_of_weight_training...

    If a weight is used, then it rests upon the shoulders, or is held in the hand(s). This is an isolation exercise for the calves; it particularly emphasises the gastrocnemius muscle, and recruits the soleus muscle. [6] Equipment Body weight, dumbbells, barbell, Smith machine or standing calf raise machine. Major variants