X3 may refer to:
Films, books, games and music [link]
- X-Men: The Last Stand, also known as X3 and X-Men 3, the third film in the comic book film series
- X3, a collection of three science fiction novellas by Gary A. Braunbeck
- X3: The Official Game, a videogame prequel to X-Men: the Last Stand
- X³: Reunion, a space simulation computer game
- X³: Terran Conflict, a sequel to X³: Reunion
- Megaman X3, the third game in Capcom's Megaman X series, a platforming game
- X3 (album), a 2004 solo album by Japanese pop singer Aya Matsuura
- X3 (group), a Chicano rap group
Transportation and technology [link]
- HMS X3, an X class submarine of the Royal Navy
- Ilmor X3 (also known as the X³), a MotoGP race motorbike
- Douglas X-3 Stiletto, an experimental jet aircraft
- X-3 Jet Pack, a fictional rocket jet-pack from the movie Rocketeer
- X3 (train), a Swedish train
- BMW X3, a BMW Sports Activity Vehicle
- Eurocopter X3, an experimental compound helicopter under development by Eurocopter
- Korg X3, a synthesizer
- Foveon X3 sensor, a layered image sensor design
- XKO X3, an ERP software
- Xecuter 3, a fourth-generation Xbox modchip manufactured by TeamXecuter
- Hapag-Lloyd Express (IATA airline designator: X3), an airline doing business as TUIfly based in Hanover, Germany
- X3, a mobile phone model by Nokia
Other [link]
- Sage ERP X3, top-level enterprise resource software for mid- to high-level businesses
- X3, the mathematical cubic function
- X3, the mathematical notation representing a cube (algebra)
- X3, a subcommittee of ANSI
- an emoticon indicating closed eyes "X" and cute (or cat) mouth "3", compared to ":3" or "XD"
- the verb love in internet slang
- an alternative term for the number 13 (for example, CorelDRAW X3 was released in 2006 as the 13th version of CorelDRAW)
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This disambiguation page lists articles associated with the same title formed as a letter-number combination. If an internal link led you here, you may wish to change the link to point directly to the intended article. |
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X3
X3 may refer to:
Films, books, games and music
Transportation and technology
Excess-3
Excess-3 or 3-Excessbinary code (often abbreviated as XS-3 or X3) or Stibitz code (after George Stibitz) is a complementary BCD code and numeral system. It also constitutes a biased representation. Excess-3 was used on some older computers as well as in cash registers and hand held portable electronic calculators of the 1970s, among other uses. It is a way to represent values with a balanced number of positive and negative numbers using a pre-specified number N as a biasing value. It is a nonweighted code. In XS-3, numbers are represented as decimal digits, and each digit is represented by four bits as the digit value plus 3 (the "excess" amount):
To encode a number such as 127, then, one simply encodes each of the decimal digits as above, giving (0100, 0101, 1010).
Adding Excess-3 works on a different algorithm than non-biased decimal coding or regular binary positional system numbers. When you add two XS-3 numbers together, the result is not an XS-3 number. For instance, when you add 1 and 0 in XS-3 the answer seems to be 4 instead of 1. In order to correct this problem, when you are finished adding each digit, you have to remove the extra bias by subtracting binary 0011 (decimal 3 in unbiased binary) if the resulting digit is less than decimal 10 and subtracting binary 1101 (decimal 13 in unbiased binary), if an overflow has occurred. Note that, in 4-bit binary, subtracting binary 1101 is equivalent to adding 0011 and vice versa.
