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# Online Computer Terms Dictionary - H

## Hamilton

William Hamilton

Nearby terms: Hal/S « Halt and Catch Fire « halting problem « Hamilton » Hamiltonian cycle » Hamiltonian path » Hamiltonian problem

## Hamiltonian cycle

Hamiltonian problem

Nearby terms: Halt and Catch Fire « halting problem « Hamilton « Hamiltonian cycle » Hamiltonian path » Hamiltonian problem » Hamiltonian tour

## Hamiltonian path

Hamiltonian problem

Nearby terms: halting problem « Hamilton « Hamiltonian cycle « Hamiltonian path » Hamiltonian problem » Hamiltonian tour » Hamilton's problem

## Hamiltonian problem

<computability> (Or "Hamilton's problem") A problem in graph theory posed by William Hamilton: given a graph, is there a path through the graph which visits each vertex precisely once (a "Hamiltonian path")? Is there a Hamiltonian path which ends up where it started (a "Hamiltonian cycle" or "Hamiltonian tour")?

Hamilton's problem is NP-complete. It has numerous applications, sometimes completely unexpected, in computing.

Home.

(1997-07-18)

Nearby terms: Hamilton « Hamiltonian cycle « Hamiltonian path « Hamiltonian problem » Hamiltonian tour » Hamilton's problem » hammer

## Hamiltonian tour

Hamiltonian problem

Nearby terms: Hamiltonian cycle « Hamiltonian path « Hamiltonian problem « Hamiltonian tour » Hamilton's problem » hammer » Hamming code

## Hamilton's problem

Hamiltonian problem

Nearby terms: Hamiltonian path « Hamiltonian problem « Hamiltonian tour « Hamilton's problem » hammer » Hamming code » Hamming distance

## hammer

Commonwealth hackish synonym for bang on.

[Jargon File]

(1995-02-16)

Nearby terms: Hamiltonian problem « Hamiltonian tour « Hamilton's problem « hammer » Hamming code » Hamming distance » Hamming, Richard

## Hamming code

<algorithm> Extra, redundant bits added to stored or transmitted data for the purposes of error detection and correction.

Named after the mathematician Richard Hamming, Hamming codes greatly improve the reliability of data, e.g. from distant space probes, where it is impractical, because of the long transmission delay, to correct errors by requesting retransmission.

[Detail? Connection with Hamming Distance?]

(2002-07-02)

Nearby terms: Hamiltonian tour « Hamilton's problem « hammer « Hamming code » Hamming distance » Hamming, Richard » hamster

## Hamming distance

<data> The minimum number of bits that must be changed in order to convert one bit string into another.

Named after the mathematician Richard Hamming.

[Connection with Hamming code?].

(2002-07-02)

Nearby terms: Hamilton's problem « hammer « Hamming code « Hamming distance » Hamming, Richard » hamster » Han character

## Hamming, Richard

Richard Hamming

Nearby terms: hammer « Hamming code « Hamming distance « Hamming, Richard » hamster » Han character » HAND

## hamster

1. <programming> (From Fairchild) A particularly slick little piece of code that does one thing well; a small, self-contained hack. The image is of a hamster happily spinning its exercise wheel.

2. <hardware> A tailless mouse; that is, one with an infrared link to a receiver on the machine, as opposed to the conventional cable.

3. <product> (UK) Any item of hardware made by Amstrad, a company famous for its cheap plastic PC-almost-compatibles.

[Jargon File]

(1995-02-16)

Nearby terms: Hamming code « Hamming distance « Hamming, Richard « hamster » Han character » HAND » hand cruft

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