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WikiCards · Card list · Science cards · Matrix
Rare card · Science
Matrix, a Rare card
In mathematics, a matrix is a rectangular array of numbers or other mathematical objects with elements or entries arranged in rows and columns, usually satisfying certain properties of addition and multiplication.
- Rarity
- Rare
- Domain
- Science
- ATK
- 89
- DEF
- 95
- Power
- 184
- Wikipedia reads a year
- 340,000
Power 184 (ATK + DEF): stronger than 95 % of WikiCards cards.
Matrix quiz: 3 questions
Three questions on the Matrix card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
In linear algebra, ______ are used as linear maps.
Answer
matrices. In linear algebra, matrices are used as linear maps. From the Matrix article on Wikipedia.
Which of these Wikipedia articles is read the most in a year?
Answer
Amino acid. Amino acid 480,000 · Matrix 340,000 · Epigenetics 260,000 · Ecology 170,000 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.
- For example, [ 1 9 − 13 20 5 − 6 ] denotes a matrix with two rows and three columns.
- This is often referred to as a "two-by-three matrix", a 2 × 3 matrix, or a matrix of dimension 2 × 3.
- In linear algebra, matrices are used as linear maps.
Why it is Rare
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Matrix article was read about 340,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 89 and blocks with 95: each hit it takes is cut by 38 %.
How to get Matrix
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 Matrix in the power ranking, all domains together.
- Sub-Saharan AfricaRare · Society · ATK 95 DEF 89
- Philip GlassRare · Arts · ATK 91 DEF 93
- Paul DiracRare · Science · ATK 84 DEF 100
- Muhammad IqbalRare · History · ATK 86 DEF 98
- Pedro II of BrazilRare · History · ATK 84 DEF 100
- Antonín DvořákRare · Arts · ATK 84 DEF 100
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, Matrix (revision), CC BY-SA 4.0. Photo : Mavaddat, CC BY-SA 4.0, Wikimedia Commons.
