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WikiCards · Card list · Science cards · Stationary point
Uncommon card · Science
Stationary point, an Uncommon card
In mathematics, particularly in calculus, a stationary point of a differentiable function of one variable is a point on the graph of the function where the function's derivative is zero.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 55
- DEF
- 29
- Power
- 84
- Wikipedia reads a year
- 17,000
Power 84 (ATK + DEF): stronger than 25 % of WikiCards cards.
The facts on the card
The card carries these facts from its Wikipedia article.
- Informally, it is a point where the function "stops" increasing or decreasing.
- For a differentiable function of several real variables, a stationary point is a point on the surface of the graph where all its partial derivatives are zero.
- The notion of stationary points of a real-valued function is generalized as critical points for complex-valued functions.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Stationary point article was read about 17,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 55 and blocks with 29: each hit it takes is cut by 12 %.
How to get Stationary point
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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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, Stationary point (revision), CC BY-SA 4.0. Photo : Self (with some Mathematica help ), CC BY-SA 3.0, Wikimedia Commons.
