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Rare card · Science
Cartesian coordinate system, a Rare card
In geometry, a Cartesian coordinate system in a plane is a coordinate system that specifies each point uniquely by a pair of real numbers called coordinates, which are the signed distances to the point from two fixed perpendicular oriented lines, called coordinate lines, coordinate axes or just axes of the system.
- Rarity
- Rare
- Domain
- Science
- ATK
- 74
- DEF
- 63
- Power
- 137
- Wikipedia reads a year
- 270,000
Power 137 (ATK + DEF): stronger than 75 % of WikiCards cards.
Cartesian coordinate system quiz: 3 questions
Three questions on the Cartesian coordinate system card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
The axes directions represent an ______ basis.
Answer
orthogonal. The axes directions represent an orthogonal basis. From the Cartesian coordinate system article on Wikipedia.
Which of these Wikipedia articles is read the most in a year?
Answer
Cartesian coordinate system. Cartesian coordinate system 270,000 · Surface acoustic wave 19,000 · Atmospheric chemistry 15,000 · Terminal deoxynucleotidyl transferase 9,700 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 point where the axes meet is called the origin and has as coordinates.
- The axes directions represent an orthogonal basis.
- The combination of origin and basis forms a coordinate frame called the Cartesian frame.
Why it is Rare
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Cartesian coordinate system article was read about 270,000 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 63: each hit it takes is cut by 25 %.
How to get Cartesian coordinate system
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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Credits
Text : Wikipedia, Cartesian coordinate system (revision), CC BY-SA 4.0. Photo : K. Bolino, Public domain, Wikimedia Commons.
