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WikiCards · Card list · Science cards · Stereographic projection
Uncommon card · Science
Stereographic projection, an Uncommon card
In mathematics, a stereographic projection is a perspective projection of the sphere, through a specific point on the sphere, onto a plane perpendicular to the diameter through the point.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 76
- DEF
- 70
- Power
- 146
- Wikipedia reads a year
- 75,000
Power 146 (ATK + DEF): stronger than 75 % of WikiCards cards.
The facts on the card
The card carries these facts from its Wikipedia article.
- It is a smooth, bijective function from the entire sphere except the center of projection to the entire plane.
- It maps circles on the sphere to circles or lines on the plane, and is conformal, meaning that it preserves angles at which curves meet and thus locally approximately preserves shapes.
- It is neither isometric nor equiareal.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Stereographic projection article was read about 75,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 76 and blocks with 70: each hit it takes is cut by 28 %.
How to get Stereographic projection
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 Stereographic projection in the power ranking, all domains together.
- James IrwinUncommon · History · ATK 69 DEF 77
- Russell MartinUncommon · Society · ATK 72 DEF 74
- SehunUncommon · Arts · ATK 75 DEF 71
- Miguel de UnamunoUncommon · Arts · ATK 76 DEF 70
- Supreme courtUncommon · Society · ATK 79 DEF 67
- Domestic duckUncommon · Nature · ATK 70 DEF 76
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, Stereographic projection (revision), CC BY-SA 4.0. Photo : Original: Mark.Howison at English Wikipedia This version: CheChe, CC BY-SA 4.0, Wikimedia Commons.
