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WikiCards · Card list · Science cards · Elliptic operator
Common card · Science
Elliptic operator, a Common card
In the theory of partial differential equations, elliptic operators are differential operators that generalize the Laplace operator.
- Rarity
- Common
- Domain
- Science
- ATK
- 59
- DEF
- 20
- Power
- 79
- Wikipedia reads a year
- 15,000
Power 79 (ATK + DEF): stronger than 20 % of WikiCards cards.
Elliptic operator quiz: 3 questions
Three questions on the Elliptic operator card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
Elliptic regularity implies that their ______ tend to be smooth functions.
Answer
solutions. Elliptic regularity implies that their solutions tend to be smooth functions. From the Elliptic operator article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Elliptic operator. Elliptic operator 59 · Earth-leakage circuit breaker 55 · Kikunae Ikeda 50 · Cuprite 47 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 defined by the condition that the coefficients of the highest-order derivatives be positive, which implies the key property that the principal symbol is invertible, or equivalently that there are no real characteristic directions.
- Elliptic operators are typical of potential theory, and they appear frequently in electrostatics and continuum mechanics.
- Elliptic regularity implies that their solutions tend to be smooth functions.
Why it is Common
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Elliptic operator article was read about 15,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 59 and blocks with 20: each hit it takes is cut by 8 %.
How to get Elliptic operator
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.
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The cards just above and just below Elliptic operator in the power ranking, all domains together.
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Credits
Text : Wikipedia, Elliptic operator (revision), CC BY-SA 4.0. Photo : Fourthirtytwo, CC BY-SA 3.0, Wikimedia Commons.
