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WikiCards · Card list · Science cards · Zeros and poles
Uncommon card · Science
Zeros and poles, an Uncommon card
In complex analysis, a pole is a certain type of singularity of a complex-valued function of a complex variable.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 54
- DEF
- 18
- Power
- 72
- Wikipedia reads a year
- 26,000
Power 72 (ATK + DEF): stronger than 15 % of WikiCards cards.
Zeros and poles quiz: 3 questions
Three questions on the Zeros and poles card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
It is the ______ type of non-removable singularity of such a function.
Answer
simplest. It is the simplest type of non-removable singularity of such a function. From the Zeros and poles article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Zeros and poles. Zeros and poles 54 · Henry Gray 51 · HSD3B7 45 · Checkerboard 42 ATK in WikiCards.
Which of these Wikipedia articles is read the most in a year?
Answer
Minute. Minute 52,000 · Zeros and poles 26,000 · Mitsubishi Sigma 18,000 · HSD3B7 59 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.
- It is the simplest type of non-removable singularity of such a function.
- Technically, a point z0 is a pole of a function f if it is a zero of the function 1/f and 1/f is holomorphic in some neighbourhood of z0.
- A function f is meromorphic in an open set U if for every point z of U there is a neighborhood of z in which at least one of f and 1/f is holomorphic.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Zeros and poles article was read about 26,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 54 and blocks with 18: each hit it takes is cut by 7 %.
How to get Zeros and poles
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 Zeros and poles in the power ranking, all domains together.
- Henry GrayUncommon · Science · ATK 51 DEF 21
- Linear settlementUncommon · Society · ATK 46 DEF 26
- Práxedes Mateo SagastaUncommon · History · ATK 55 DEF 17
- Ian BrzezinskiUncommon · History · ATK 49 DEF 23
- Big MerinoUncommon · Society · ATK 44 DEF 28
- Free surface effectUncommon · Arts · ATK 51 DEF 21
Card lists
- Wikipedia quizNew questions every day
- All cards from A to ZEvery card, by name
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- Tier listS and A tiers by power (ATK + DEF)
Credits
Text : Wikipedia, Zeros and poles (revision), CC BY-SA 4.0. Photo : Geek3, CC BY-SA 3.0, Wikimedia Commons.
