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  2. Axiom schema of replacement - Wikipedia

    en.wikipedia.org/wiki/Axiom_schema_of_replacement

    Axiom schema of replacement: the image [] of the domain set under the definable class function is itself a set, . Suppose P {\displaystyle P} is a definable binary relation (which may be a proper class ) such that for every set x {\displaystyle x} there is a unique set y {\displaystyle y} such that P ( x , y ) {\displaystyle P(x,y)} holds.

  3. Lookup table - Wikipedia

    en.wikipedia.org/wiki/Lookup_table

    In computer science, a lookup table (LUT) is an array that replaces runtime computation of a mathematical function with a simpler array indexing operation, in a process termed as direct addressing. The savings in processing time can be significant, because retrieving a value from memory is often faster than carrying out an "expensive ...

  4. Asymmetric numeral systems - Wikipedia

    en.wikipedia.org/wiki/Asymmetric_numeral_systems

    Equivalently, ⁡ (′) ⁡ + ⁡ (/), where ⁡ is the number of bits of information stored in the number , and ⁡ (/) is the number of bits contained in the symbol . For the encoding rule, the set of natural numbers is split into disjoint subsets corresponding to different symbols – like into even and odd numbers, but with densities ...

  5. Hexagonal Efficient Coordinate System - Wikipedia

    en.wikipedia.org/wiki/Hexagonal_Efficient...

    The Hexagonal Efficient Coordinate System (HECS), formerly known as Array Set Addressing (ASA), is a coordinate system for hexagonal grids that allows hexagonally sampled images to be efficiently stored and processed on digital systems. HECS represents the hexagonal grid as a set of two interleaved rectangular sub-arrays, which can be addressed ...

  6. N2 chart - Wikipedia

    en.wikipedia.org/wiki/N2_Chart

    The N 2 chart or N 2 diagram (pronounced "en-two" or "en-squared") is a chart or diagram in the shape of a matrix, representing functional or physical interfaces between system elements. It is used to systematically identify, define, tabulate, design, and analyze functional and physical interfaces.

  7. Linked list - Wikipedia

    en.wikipedia.org/wiki/Linked_list

    Growing a large array when it is full may be difficult or impossible, whereas finding space for a new linked list node in a large, general memory pool may be easier. Adding elements to a dynamic array will occasionally (when it is full) unexpectedly take linear (O(n)) instead of constant time (although it is still an amortized constant).

  8. 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)!

  9. Hack computer - Wikipedia

    en.wikipedia.org/wiki/Hack_computer

    Hack Computer Block Diagram. The Hack computer hardware consists of three basic elements as shown in the block diagram. There are two separate 16-bit memory units and a central processing unit (CPU). Because data is moved and processed by the computer in 16-bit words, the Hack computer is classified as a 16-bit architecture.