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WikiCards · Card list · Science cards · Cross product
Rare card · Science
Cross product, a Rare card
In mathematics, the cross product or vector product is a binary operation on two vectors in a three-dimensional oriented Euclidean vector space, and is denoted by the symbol ×.
- Rarity
- Rare
- Domain
- Science
- ATK
- 81
- DEF
- 72
- Power
- 153
- Wikipedia reads a year
- 370,000
Power 153 (ATK + DEF): stronger than 80 % of WikiCards cards.
Cross product quiz: 3 questions
Three questions on the Cross product card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
It should not be ______ with the dot product.
Answer
confused. It should not be confused with the dot product. From the Cross product article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Cross product. Cross product 81 · Wheel 75 · William Henry Bragg 72 · Software 68 ATK in WikiCards.
Which of these Wikipedia articles is read the most in a year?
Answer
Coordinated Universal Time. Coordinated Universal Time 950,000 · Cross product 370,000 · Wheel 220,000 · William Henry Bragg 29,000 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.
- Given two linearly independent vectors a and b, the cross product, a × b, is a vector that is perpendicular to both a and b, and thus normal to the plane containing them.
- It has many applications in mathematics, physics, engineering, and computer programming.
- It should not be confused with the dot product.
Why it is Rare
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Cross product article was read about 370,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 81 and blocks with 72: each hit it takes is cut by 29 %.
How to get Cross product
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 Cross product in the power ranking, all domains together.
- Joseph II, Holy Roman EmperorRare · History · ATK 80 DEF 73
- AlgiersRare · Society · ATK 87 DEF 66
- SoftwareRare · Science · ATK 68 DEF 85
- PoloRare · Society · ATK 83 DEF 70
- StingrayRare · Nature · ATK 74 DEF 79
- Osamu TezukaRare · Arts · ATK 81 DEF 72
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, Cross product (revision), CC BY-SA 4.0. Photo : Acdx, Public domain, Wikimedia Commons.
