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WikiCards · Card list · Science cards · Invariant
Uncommon card · Science
Invariant, an Uncommon card
In mathematics, an invariant is a property of a mathematical object which remains unchanged after operations or transformations of a certain type are applied to the objects.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 66
- DEF
- 32
- Power
- 98
- Wikipedia reads a year
- 39,000
Power 98 (ATK + DEF): stronger than 40 % of WikiCards cards.
Invariant quiz: 3 questions
Three questions on the Invariant card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
The phrases "invariant under" and "invariant to" a ______ are both used.
Answer
transformation. The phrases "invariant under" and "invariant to" a transformation are both used. From the Invariant article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Invariant. Invariant 66 · Speed 62 · Culinary arts 59 · Honda N-WGN 56 ATK in WikiCards.
Which of these Wikipedia articles is read the most in a year?
Answer
Speed. Speed 120,000 · Megastructure 74,000 · Invariant 39,000 · Clock signal 30,000 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.
- The particular class of objects and type of transformations are usually indicated by the context in which the term is used.
- For example, the area of a triangle is an invariant with respect to isometries of the Euclidean plane.
- The phrases "invariant under" and "invariant to" a transformation are both used.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Invariant article was read about 39,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 66 and blocks with 32: each hit it takes is cut by 13 %.
How to get Invariant
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 Invariant in the power ranking, all domains together.
- Mauritz StillerUncommon · Arts · ATK 61 DEF 37
- Richard DedekindUncommon · Science · ATK 63 DEF 35
- Culinary artsUncommon · Arts · ATK 59 DEF 39
- Richard AttiasUncommon · Society · ATK 57 DEF 41
- Kishore filmographyUncommon · Arts · ATK 63 DEF 35
- Mauro JúniorUncommon · Society · ATK 57 DEF 41
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, Invariant (revision), CC BY-SA 4.0. Photo : Owen Jones , uploaded to the English Wikipedia by w:en:User:Dmharvey, Public domain, Wikimedia Commons.
