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Uncommon card · Science
Computable number, an Uncommon card
In mathematics, computable numbers are the real numbers that can be computed to within any desired precision by a finite, terminating algorithm.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 67
- DEF
- 40
- Power
- 107
- Wikipedia reads a year
- 27,000
Power 107 (ATK + DEF): stronger than 60 % of WikiCards cards.
Computable number quiz: 3 questions
Three questions on the Computable number card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
They are also known as the ______ numbers, effective numbers, computable reals, or recursive reals.
Answer
recursive. They are also known as the recursive numbers, effective numbers, computable reals, or recursive reals. From the Computable number article on Wikipedia.
In which decade?
The concept of a computable real number was introduced by Émile Borel in ____, using the intuitive notion of computability available at the time.
Answer
1910s. The concept of a computable real number was introduced by Émile Borel in 1912, using the intuitive notion of computability available at the time. From the Computable number article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Computable number. Computable number 67 · Saab 21R 62 · Balance beam 58 · Ammonium dihydrogen phosphate 55 ATK in WikiCards.
In a duel, each round asks a question like these about the opposing card, with 15 seconds to answer.
The facts on the card
The card carries these facts from its Wikipedia article.
- They are also known as the recursive numbers, effective numbers, computable reals, or recursive reals.
- The concept of a computable real number was introduced by Émile Borel in 1912, using the intuitive notion of computability available at the time.
- Equivalent definitions can be given using μ-recursive functions, Turing machines, or λ-calculus as the formal representation of algorithms.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Computable number article was read about 27,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 67 and blocks with 40: each hit it takes is cut by 16 %.
How to get Computable number
Open packs. Each pack holds five cards drawn from real Wikipedia articles, the rarest last, and the fifth card is always Rare or better. The odds are shown in the game. A free pack arrives every hour and two can wait, and the Coins you win in duels buy more packs.
More Science cards
Cards close in power
The cards just above and just below Computable number in the power ranking, all domains together.
- CabinetryUncommon · Society · ATK 65 DEF 42
- Large-panel-system buildingUncommon · Arts · ATK 63 DEF 44
- ArdiUncommon · Nature · ATK 61 DEF 46
- Mahmoud HamshariUncommon · History · ATK 58 DEF 49
- Palácio da AlvoradaUncommon · Nature · ATK 58 DEF 49
- Central Denmark RegionUncommon · Society · ATK 62 DEF 45
Card lists
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- All cards from A to ZEvery card, by name
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Credits
Text : Wikipedia, Computable number (revision), CC BY-SA 4.0. Photo : User:LoStrangolatore, CC BY-SA 3.0, Wikimedia Commons.