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WikiCards · Card list · Science cards · Irrational number
Uncommon card · Science
Irrational number, an Uncommon card
In mathematics, the irrational numbers are all the real numbers that are not rational numbers, that is, irrational numbers are those that cannot be expressed as the ratio of two integers.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 73
- DEF
- 57
- Power
- 130
- Wikipedia reads a year
- 160,000
Power 130 (ATK + DEF): stronger than 70 % of WikiCards cards.
Irrational number quiz: 3 questions
Three questions on the Irrational number card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
In fact, all square roots of natural numbers, other than of ______ squares, are irrational.
Answer
perfect. In fact, all square roots of natural numbers, other than of perfect squares, are irrational. From the Irrational number article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Noether's theorem. Noether's theorem 81 · Traditional animation 78 · Irrational number 73 · August 70 ATK in WikiCards.
Which of these Wikipedia articles is read the most in a year?
Answer
August. August 310,000 · G. H. Hardy 230,000 · Irrational number 160,000 · Barber 100,000 Wikipedia reads over a year.
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.
- Geometrically, when the ratio of lengths of two line segments is an irrational number, the line segments are also described as being incommensurable, meaning that they share no "measure" in common, that is, there is no length, no matter how short, that could be used to express the lengths of both of the two given segments as integer multiples of itself.
- Among irrational numbers are the ratio π of a circle's circumference to its diameter, Euler's number e, the golden ratio φ, and the square root of two.
- In fact, all square roots of natural numbers, other than of perfect squares, are irrational.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Irrational number article was read about 160,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 73 and blocks with 57: each hit it takes is cut by 23 %.
How to get Irrational 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 Irrational number in the power ranking, all domains together.
- 1788–89 United States presidential electionUncommon · History · ATK 73 DEF 57
- Gustave FlaubertUncommon · Arts · ATK 69 DEF 61
- GymnospermUncommon · Nature · ATK 71 DEF 59
- Traditional animationUncommon · Arts · ATK 78 DEF 52
- YaoundéUncommon · Society · ATK 68 DEF 62
- ApiaceaeUncommon · Nature · ATK 68 DEF 62
Card lists
- Wikipedia quizNew questions every day
- All cards from A to ZEvery card, by name
- Science cards
- Legendary cards
- Tier listS and A tiers by power (ATK + DEF)
Credits
Text : Wikipedia, Irrational number (revision), CC BY-SA 4.0. Photo : derivative work: Pbroks13 ( talk ) Square root of 2 triangle.png : en:User:Fredrik Simplif, Public domain, Wikimedia Commons.
