WikiCards · Card list · Science cards · Critical point
Uncommon card · Science
Critical point, an Uncommon card
In mathematics, a critical point is the argument of a function where the function derivative is zero.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 64
- DEF
- 31
- Power
- 95
- Wikipedia reads a year
- 32,000
Power 95 (ATK + DEF): stronger than 35 % of WikiCards cards.
Critical point quiz: 3 questions
Three questions on the Critical point card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
The value of the ______ at a critical point is a critical value.
Answer
function. The value of the function at a critical point is a critical value. From the Critical point article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Critical point. Critical point 64 · Rockwell-MBB X-31 61 · Divisor 58 · Blowtorch 53 ATK in WikiCards.
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 value of the function at a critical point is a critical value.
- More specifically, when dealing with functions of a real variable, a critical point is a point in the domain of the function where the function derivative is equal to zero or where the function is not differentiable.
- Similarly, when dealing with complex variables, a critical point is a point in the function's domain where its derivative is equal to zero.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Critical point article was read about 32,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 64 and blocks with 31: each hit it takes is cut by 12 %.
How to get Critical 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.
More Science cards
Cards close in power
The cards just above and just below Critical point in the power ranking, all domains together.
- Margraviate of AustriaUncommon · History · ATK 61 DEF 34
- Jon AramburuUncommon · Society · ATK 55 DEF 40
- Léon FoucaultUncommon · Science · ATK 60 DEF 35
- OpinionUncommon · Society · ATK 56 DEF 39
- WeiUncommon · History · ATK 58 DEF 37
- Aerial rootUncommon · Nature · ATK 56 DEF 39
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, Critical point (revision), CC BY-SA 4.0. Photo : Self (with some Mathematica help ), CC BY-SA 3.0, Wikimedia Commons.

