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WikiCards · Card list · Science cards · Matrix multiplication
Rare card · Science
Matrix multiplication, a Rare card
In mathematics, specifically in linear algebra, matrix multiplication is a binary operation that produces a matrix from two matrices.
- Rarity
- Rare
- Domain
- Science
- ATK
- 74
- DEF
- 56
- Power
- 130
- Wikipedia reads a year
- 310,000
Power 130 (ATK + DEF): stronger than 65 % of WikiCards cards.
The facts on the card
The card carries these facts from its Wikipedia article.
- For matrix multiplication, the number of columns in the first matrix must be equal to the number of rows in the second matrix.
- The resulting matrix, known as the matrix product, has the number of rows of the first and the number of columns of the second matrix.
- The product of matrices A and B is denoted as AB.
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 multiplication article was read about 310,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 74 and blocks with 56: each hit it takes is cut by 22 %.
How to get Matrix multiplication
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 multiplication in the power ranking, all domains together.
- MoleRare · Nature · ATK 67 DEF 63
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- AugustRare · Science · ATK 70 DEF 60
- Dial M for MurderRare · Arts · ATK 69 DEF 61
- Diffie–Hellman key exchangeRare · Science · ATK 75 DEF 55
- John ForsytheRare · Arts · ATK 71 DEF 59
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 multiplication (revision), CC BY-SA 4.0. Photo : Quartl, CC BY-SA 3.0, Wikimedia Commons.
