WikiCards
Play on iPhone nowFree in Safari. Add it to your Home Screen.Play
WikiCards · Card list · Science cards · Zero of a function
Uncommon card · Science
Zero of a function, an Uncommon card
In mathematics, a zero of a real-, complex-, or generally vector-valued function f, is a member x of the domain of f such that f vanishes at x, that is, the function f attains the value of 0 at x, or equivalently, x is a solution to the equation f = 0.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 53
- DEF
- 27
- Power
- 80
- Wikipedia reads a year
- 26,000
Power 80 (ATK + DEF): stronger than 25 % of WikiCards cards.
Zero of a function quiz: 3 questions
Three questions on the Zero of a function card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
A root of a polynomial is a zero of the ______ polynomial function.
Answer
corresponding. A root of a polynomial is a zero of the corresponding polynomial function. From the Zero of a function article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Binding energy. Binding energy 60 · Zero of a function 53 · Christian Bohr 49 · Ravelin 46 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.
- A "zero" of a function is thus an input value that produces an output of 0.
- A root of a polynomial is a zero of the corresponding polynomial function.
- The fundamental theorem of algebra shows that any non-zero polynomial has a number of roots at most equal to its degree, and that the number of roots and the degree are equal when one considers the complex roots counted with their multiplicities.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Zero of a function article was read about 26,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 53 and blocks with 27: each hit it takes is cut by 11 %.
How to get Zero of a function
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 Zero of a function in the power ranking, all domains together.
- Fabio CasartelliUncommon · Society · ATK 53 DEF 27
- MorrisUncommon · Arts · ATK 54 DEF 26
- Tim KlüssendorfUncommon · History · ATK 52 DEF 28
- GangueUncommon · History · ATK 51 DEF 29
- HosheaUncommon · History · ATK 54 DEF 26
- HydrofluorocarbonUncommon · Science · ATK 52 DEF 28
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, Zero of a function (revision), CC BY-SA 4.0. Photo : Jacobolus, CC BY-SA 4.0, Wikimedia Commons.
