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  2. Codes for electromagnetic scattering by spheres - Wikipedia

    en.wikipedia.org/wiki/Codes_for_electromagnetic...

    C++, Python, and JavaScript: GPLv3 Light scattering from a multilayered sphere based on the algorithm by W Yang. [17] Very robust and stable, slower than Toon and Ackerman. Evaluate integral parameters and angular patterns, near-field and power flow streamlines plotting. Has a compilation option to use Boost.Multiprecision for higher accuracy.

  3. Ordered dithering - Wikipedia

    en.wikipedia.org/wiki/Ordered_dithering

    The version on the right shows the effect of quantizing it to 16 colors and dithering using the 8×8 ordered dithering pattern. The characteristic 17 patterns of the 4×4 ordered dithering matrix can be seen clearly when used with only two colors, black and white. Each pattern is shown above the corresponding undithered shade.

  4. Braille Patterns - Wikipedia

    en.wikipedia.org/wiki/Braille_Patterns

    The Unicode name of a specific pattern mentions the raised dots: U+2813 ⠓ BRAILLE PATTERN DOTS-125 has dots 1, 2 and 5 raised. By exception, the zero dot raised pattern is named U+2800 ⠀ BRAILLE PATTERN BLANK. [4] In the 8-dot cell each dot individually can be raised or not. That creates 2 8 =256 different patterns.

  5. Data Matrix - Wikipedia

    en.wikipedia.org/wiki/Data_Matrix

    An example of a Data Matrix code, encoding the text: "Wikipedia, the free encyclopedia" A Data Matrix is a two-dimensional code consisting of black and white "cells" or dots arranged in either a square or rectangular pattern, also known as a matrix. The information to be encoded can be text or numeric data.

  6. Braille pattern dots-256 - Wikipedia

    en.wikipedia.org/wiki/Braille_pattern_dots-256

    The Braille pattern dots-256 ( ⠲) is a 6-dot braille cell with both middle, and the bottom right dots raised, or an 8-dot braille cell with both upper-middle, and the lower-middle right dots raised. It is represented by the Unicode code point U+2832, and in Braille ASCII with the number 4.

  7. Pattern matching - Wikipedia

    en.wikipedia.org/wiki/Pattern_matching

    The patterns generally have the form of either sequences or tree structures. Uses of pattern matching include outputting the locations (if any) of a pattern within a token sequence, to output some component of the matched pattern, and to substitute the matching pattern with some other token sequence (i.e., search and replace).

  8. Sudoku solving algorithms - Wikipedia

    en.wikipedia.org/wiki/Sudoku_solving_algorithms

    A standard Sudoku contains 81 cells, in a 9×9 grid, and has 9 boxes, each box being the intersection of the first, middle, or last 3 rows, and the first, middle, or last 3 columns. Each cell may contain a number from one to nine, and each number can only occur once in each row, column, and box.

  9. Elementary cellular automaton - Wikipedia

    en.wikipedia.org/wiki/Elementary_cellular_automaton

    In mathematics and computability theory, an elementary cellular automaton is a one-dimensional cellular automaton where there are two possible states (labeled 0 and 1) and the rule to determine the state of a cell in the next generation depends only on the current state of the cell and its two immediate neighbors.