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Uncommon card · Science
Laplace's equation, an Uncommon card
In mathematics and physics, Laplace's equation is a second-order partial differential equation named after Pierre-Simon Laplace, who first studied its properties in 1786.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 74
- DEF
- 59
- Power
- 133
- Wikipedia reads a year
- 110,000
Power 133 (ATK + DEF): stronger than 65 % of WikiCards cards.
Laplace's equation quiz: 3 questions
Three questions on the Laplace's equation card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
The ______ operator therefore maps a scalar function to another scalar function.
Answer
Laplace. The Laplace operator therefore maps a scalar function to another scalar function. From the Laplace's equation article on Wikipedia.
In which decade?
In mathematics and physics, Laplace's equation is a second-order partial differential equation named after Pierre-Simon Laplace, who first studied its properties in ____.
Answer
1780s. In mathematics and physics, Laplace's equation is a second-order partial differential equation named after Pierre-Simon Laplace, who first studied its properties in 1786. From the Laplace's equation article on Wikipedia.
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.
- This is often written as ∇ 2 f = 0 or Δ f = 0, where Δ = ∇ ⋅ ∇ = ∇ 2 is the Laplace operator, ∇ ⋅ is the divergence operator, ∇ is the gradient operator, and f is a twice-differentiable real-valued function.
- The Laplace operator therefore maps a scalar function to another scalar function.
- If the right-hand side is specified as a given function, h, we have Δ f = h This is called Poisson's equation, a generalization of Laplace's equation.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Laplace's equation article was read about 110,000 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 59: each hit it takes is cut by 24 %.
How to get Laplace's equation
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, Laplace's equation (revision), CC BY-SA 4.0. Photo : Geek3, CC BY-SA 3.0, Wikimedia Commons.
