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WikiCards · Card list · Science cards · Riemann sum
Uncommon card · Science
Riemann sum, an Uncommon card
In mathematics, a Riemann sum is a certain kind of approximation of an integral by a finite sum.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 64
- DEF
- 54
- Power
- 118
- Wikipedia reads a year
- 100,000
Power 118 (ATK + DEF): stronger than 55 % of WikiCards cards.
Riemann sum quiz: 3 questions
Three questions on the Riemann sum card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
It is named after nineteenth century German ______ Bernhard Riemann.
Answer
mathematician. It is named after nineteenth century German mathematician Bernhard Riemann. From the Riemann sum article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Stokes' theorem. Stokes' theorem 72 · Financial services 67 · Riemann sum 64 · Luxor Temple 58 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.
- It is named after nineteenth century German mathematician Bernhard Riemann.
- One very common application is in numerical integration, i.e., approximating the area of functions or lines on a graph, where it is also known as the rectangle rule.
- It can also be applied for approximating the length of curves and other approximations.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Riemann sum article was read about 100,000 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 54: each hit it takes is cut by 22 %.
How to get Riemann sum
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 Riemann sum in the power ranking, all domains together.
- Luxor TempleUncommon · Nature · ATK 58 DEF 60
- Military aircraftUncommon · History · ATK 65 DEF 53
- PolderUncommon · Nature · ATK 65 DEF 53
- SalesUncommon · Society · ATK 70 DEF 48
- Tiff NeedellUncommon · Society · ATK 72 DEF 46
- Ford Madox FordUncommon · Arts · ATK 69 DEF 49
Card lists
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Credits
Text : Wikipedia, Riemann sum (revision), CC BY-SA 4.0. Photo : Brad219, CC0, Wikimedia Commons.
