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  2. Diamond-square algorithm - Wikipedia

    en.wikipedia.org/wiki/Diamond-square_algorithm

    The square step: For each diamond in the array, set the midpoint of that diamond to be the average of the four corner points plus a random value. Each random value is multiplied by a scale constant, which decreases with each iteration by a factor of 2 −h , where h is a value between 0.0 and 1.0 (lower values produce rougher terrain).

  3. Eye pattern - Wikipedia

    en.wikipedia.org/wiki/Eye_pattern

    In telecommunications, an eye pattern, also known as an eye diagram, is an oscilloscope display in which a digital signal from a receiver is repetitively sampled and applied to the vertical input (y-axis), while the data rate is used to trigger the horizontal sweep (x-axis). It is so called because, for several types of coding, the pattern ...

  4. Local binary patterns - Wikipedia

    en.wikipedia.org/wiki/Local_binary_patterns

    Local binary patterns (LBP) is a type of visual descriptor used for classification in computer vision. LBP is the particular case of the Texture Spectrum model proposed in 1990. LBP is the particular case of the Texture Spectrum model proposed in 1990.

  5. Sierpiński triangle - Wikipedia

    en.wikipedia.org/wiki/Sierpiński_triangle

    The canonical Sierpiński triangle uses an equilateral triangle with a base parallel to the horizontal axis (first image). Shrink the triangle to ⁠ 1 / 2 ⁠ height and ⁠ 1 / 2 ⁠ width, make three copies, and position the three shrunken triangles so that each triangle touches the two other triangles at a corner (image 2).

  6. Trait (computer programming) - Wikipedia

    en.wikipedia.org/wiki/Trait_(computer_programming)

    Python: Via a third-party library, [34] [35] or via higher-order mixin classes [36] Racket: Supports traits as a library and uses macros, structures, and first-class classes to implement them. [37] Ruby: Module mixins can be used to implement traits. [38] Rust [39] Scala [40] [41] trait is builtin supported with the key word trait.

  7. Pixel-art scaling algorithms - Wikipedia

    en.wikipedia.org/wiki/Pixel-art_scaling_algorithms

    xBR ("scale by rules"), created by Hyllian, works much the same way as HQx (based on pattern recognition) and would generate the same result as HQx when given the above pattern. [15] However, it goes further than HQx by using a 2-stage set of interpolation rules, which better handle more complex patterns such as anti-aliased lines and curves.

  8. Frieze group - Wikipedia

    en.wikipedia.org/wiki/Frieze_group

    Any transformation of the plane leaving this pattern invariant can be decomposed into a translation, (x, y) ↦ (n + x, y), optionally followed by a reflection in either the horizontal axis, (x, y) ↦ (x, −y), or the vertical axis, (x, y) ↦ (−x, y), provided that this axis is chosen through or midway between two dots, or a rotation by ...

  9. Fluent interface - Wikipedia

    en.wikipedia.org/wiki/Fluent_interface

    In Python, returning self in the instance method is one way to implement the fluent pattern. It is however discouraged by the language’s creator, Guido van Rossum, [3] and therefore considered unpythonic (not idiomatic) for operations that do not return new values. Van Rossum provides string processing operations as example where he sees the ...