Definition von f-number im Englisch Englisch wörterbuch
- The ratio of the focal length of a lens to its diameter; a measure of the light-gathering ability of the lens
- focal distance divided by the effective diameter of the camera lens aperture (Photography)
- 0800 number
- a UK telephone number beginning with 0800 that is free for the caller as the call is paid for by the company or organisation being called
- 800 number
- Name given to toll-free telephone numbers in North America
- 900 number
- Name given to telephone numbers in North America for which an extra charge is assessed, part of which is returned to the owner of the number
- Avogadro's number
- The number of atoms present in 0.012 kilograms of isotopically pure Carbon-12, being 6.0221415 x 1023. By definition, the number of elementary entities (atoms or molecules) comprising one mole of a given substance
- Betti number
- A number associated to each topological space and each dimension, giving an approximate number of holes of that dimension in that space
- Christmas number one
- the single at the top of the singles charts on Christmas Day (25 December)
- E number
- Any such additive, often regarded as undesirable
how long it took corpses to go off these days, because everyone was so full of E-numbers and preservatives.
- E number
- Any of a range of European abbreviations for food additives used on labels
The E number E100 represents turmeric.
- Erdős number
- A number describing the degree of collaboration between a mathematician and Paul Erdős, defined such that a mathematician who has written a paper with Erdős has an Erdős number of 1, a mathematician who has written a paper with somebody having an Erdős number of 1 has an Erdős number of two, and so on
- Fibonacci number
- Any number in a Fibonacci sequence (being the sum of the preceding two numbers)
- Frobenius number
- For a given set of coprime positive integers, the greatest integer that cannot be expressed as a linear combination (with nonnegative integer coefficients) of its elements
The Frobenius number of 2 and 5 is 3, since 3 cannot be formed as a sum of twos and fives while every larger integer can.
- Froude number
- A dimensionless number defined as the ratio of a characteristic velocity to a gravitational wave velocity, used in fluid mechanics to determine the resistance of an object moving through water
- God's number
- The maximum number of moves needed to solve a puzzle using God's algorithm
- Greek number
- The numbers or number system used in Greece. Modern Greece uses the decimal number system
- Greek number
- Greek numeral, a word or symbol used to represent a number by Greek speakers
- Gödel number
- A number uniquely assigned to each symbol, and to each well-formed formula of some formal language
- Kaprekar number
- A non-negative integer, the representation of whose square in its base can be split into two parts that add up to itself (such as 297, whose square, 88209, can be split into 88 and 209, totalling 297)
- Keith number
- A repetitive Fibonacci-like integer which appears in a linear recurrence relation
- Mach number
- The ratio of the velocity of a body to that of sound in the surrounding medium
- Messier number
- : A catalog number used to name and record approximately 100 galaxies, nebulae, and other objects visible in the night sky that are not stars. Objects in Messier's catalog of Nebulae and Star Clusters are numbered, and the letter M (for Messier) is prepended to these numbers, as in M31 (the Andromeda Galaxy) or M13 (the globular cluster in Hercules)
- Number 10
- The office of the British Prime Minister; the UK Government
There are honourable people in the government and principled advisers working in Number 10, even if their unheralded service is obscured by the crass antics of spin doctors and the demagoguery of some ministers.
- PIN number
- A common alternative form of PIN (in the sense of "personal identification number")
- Proth number
- A number of the form k2n + 1, where k is odd, n is a positive integer, and 2n > k
- RSA number
- Any of the large semiprime numbers to be factored in the RSA Factoring Challenge, a competition from 1991 to 2007 encouraging research into computational number theory
- Reynolds number
- a dimensionless parameter that determines the behavior of viscous flow patterns. In pipe flow a value less than about 2,000 (known as the critical Reynolds number) produces laminar flow, one above about 3,000 produces turbulent flow (intermediate values produce unpredictable behavior)
- Stephanus number
- A standard reference number for a section of a given Platonic dialogue, referring to a page in the 1578 translation of Plato’s dialogues by Henricus Stephanus
The Republic is traditionally divided into ten books. But this division, as has often been pointed out, was dictated rather by the technicalities of book-production in the ancient world, the amount that would go on to a papyrus roll, than by the sequence of the argument. The division into parts and sections in this translation attempts to represent the structure of the argument more nearly. The traditional division into books and the Stephanus numbers and letters (see p. 5) are given in the margin for purpose of reference.
- Vehicle Identification Number
- A mandatory unique number assigned to each vehicle produced, stamped into the metal on the dashboard on the driver's side (viewable through the windshield), on the engine block and at least one other place somewhere on the body of the vehicle
- a number of
- Several of
I spoke with a number of them about it.
- a number of
- Several
A number of people have commented on it.
- abstract number
- A number used without application to things, as 6, 8, 10; but when applied to any thing, as 6 feet, 10 men, it becomes concrete
- abundant number
- A number that is less than the sum of all of its divisors except itself
The factors of 30 are 1, 2, 3, 5, 6, 10, 15 and 30, and 1 + 2 + 3 + 5 + 6 + 10 + 15 = 42, which is greater than 30, so 30 is an abundant number.
- abundant-number
- Attributive form of abundant number, noun
- adverbial number
- A word that expresses a countable number of times; an adverbial numeral
Twice is an adverbial number, while two is an cardinal number.
- aggregation number
- the number of molecules that are associated together to form a micelle
- algebraic number
- A complex number that is a root of a polynomial equation with rational coefficients
- algebraic number theory
- The subfield of number theory where algebraic numbers are studied using algebra
- amicable number
- Either of a pair of amicable numbers
- atomic number
- The number, equal to the number of protons in an atom that determines its chemical properties. Symbol: Z
- atomic-number
- Attributive form of atomic number
atomic-number data.
- automatic number plate recognition
- A method of surveillance used to mechanically record details of car registration plates. Abbreviated to ANPR
- automorphic number
- A number whose decimal representation of its square ends in itself
Example: 52 = 25.
- azimuthal quantum number
- The quantum number that represents the angular momentum of an atomic orbital
- back number
- A back issue of a magazine, etc
- back number
- Anything considered old-fashioned
- baryon number
- A quantum number related to the difference between the numbers of quarks and antiquarks in a system of subatomic particles
- binary number
- A number represented by the binary digits 0 and 1
Thirteen is 1101 as a binary number.
- call number
- a combination of characters assigned to a library book to indicate its place on a shelf
- call number
- a mark consisting of characters written on a book; used to indicate shelf location
- call number
- An identification number, which identifies and locates material within a library
- cardinal number
- A generalized kind of number used to denote the size of a set, including infinite sets
- cardinal number
- A word that expresses a countable quantity; a cardinal numeral
Three is a cardinal number, while third is an ordinal number.
- cardinal number
- A number used to denote quantity; a counting number
The cardinal number three can be represented as 3 or three.
- cardinal-number
- Attributive form of cardinal number, noun
- cetane number
- A performance rating of diesel fuel corresponding to the percentage of cetane in a mixture with methylnaphthalene that would have the same performance
- chromatic number
- The smallest number of colours needed to colour a connected graph
- collective number
- the same as collective numeral
- color by number
- To complete such an exercise; to carry out such a technique by filling in each space with the appropriate color
- color by number
- A technique that applies such exercises, as used until recently in the production of large-scale animations for instance
- color by number
- A simple drawing exercise, intended especially for children, consisting of a line drawing that divides the artwork into distinct spaces, the intended color of each indicated by a number and referenced from a key
- complex number
- A number of the form a + bi, where a and b are real numbers and i 2 = −1
- composite number
- A number that is a the product of at least two numbers other than itself and 1
- coordination number
- the number of ligands surrounding a central metal atom in a coordination compound
- copy number
- The identification number assigned to a specific copy of a work
In other words, there was no way to correlate a book's barcode number, by which it was filed in the computer, to its copy number on the shelf list.
- copy number
- The number of copies of a gene or plasmid within a cell's genome
Reconstruction or titration experiments consisting of amounts of the linear cloned cDNA equivalent to various gene copy numbers in the genomic DNA are run on the same gel.
- copy number polymorphism
- The normal variation in the number of copies (normally two) of a gene, or of sequences of DNA, in the genome of a specific individual
- copy number variation
- The variation of the number of copies (normally two) of a gene, or of sequences of DNA, in the genome of a specific individual; has been linked to some diseases
- copy-number variant
- a DNA sequence 1000 nucleotides (or synonymously base pairs) in length or longer that is present a variable number of times as copies in a genome relative to a reference genome
- counting number
- a positive integer
- covering number
- The number of vertices in a minimum vertex cover of a graph, often denoted as \tau = \tau(G)
- critical Reynolds number
- A Reynolds number at which the flow of a fluid changes from laminar to turbulent
- crossing number
- The minimum, taken over all planar representations of a link or graph, of the number of times it crosses itself
- curb number
- The house number painted on the curb of the street in front of a building
- de Moivre number
- any of several complex numbers that are coordinates of the vertices of a regular polygon of unit radius
- decimal number
- A number represented by the decimal digits 0 to 9 and possibly a decimal point
Thirteen and a quarter is 13.25 as a decimal number.
- defective number
- A deficient number
- deficient number
- A number that greater than the sum of all of its divisors except itself
The factors of 22 are 1, 2 and 11 and 22, and 1 + 2 + 11 = 14, which is less than 22, so 22 is a deficient number.
- diamond number
- A memorable mobile phone number
- distributive number
- A word that answers "how many times each?" or "how many at a time?"
Singly is a distributive number, while single is a multiplier.
- do a number on
- To damage; to treat harshly; to produce ill effects on
All-night caffeine-fueled video game binges do a number on your body, says Essenburg.
- domination number
- the number of vertices in a minimum dominating set of a given graph, often denoted as \gamma=\gamma(G)
- edge covering number
- the number of edges in a minimum edge cover of a graph, often denoted as \rho = \rho(G)
- electron number
- The number of electrons in an atom or ion
- excessive number
- An abundant number
- extended real number system
- The real number system adjoined with two extra symbols: ∞ and −∞, inheriting the ordering of the real number system, and defining −∞ to be less than any real number, and ∞ to be larger than any real number
- figurate number
- A number equal to the number of dots in a geometric figure formed of dots
- floating-point number
- A real number held as a pair of integers, one representing the mantissa and the other representing the exponent. The base is normally 10, 16 or 256 depending on the computing system
- floating-point number
- A number written in the form a x bc e.g. 3.75 x 103
- get someone's number
- Alternative form of have someone's number
- harmonic number
- Any of a series of numbers formed from the sum of the reciprocals of consecutive integers
- have one's number on it
- Te be destined for someone
I'll catch that fish. It has my number on it.
- have someone's number
- To understand a person's character, capabilities, or situation
Llodra, a doubles specialist who is ranked 38 in singles, was charging to the net at every opportunity and played some brilliant shots but Murray seemed to have his number at that stage.
- homogeneous number
- A number that shares its prime factors with another
It is easy to show that 12 and 18 are homogeneous numbers.
- house number
- The single object or multiple objects attached to a building (or an object adjacent to it such as a mailbox or post) to display the street address assigned to that structure
- house number
- The street address numbers painted on a building (or an object such as a mailbox or post near the building), or painted on the curb of the street in front of the building
- hypercomplex number
- A complex number consisting of more than two square roots of negative one, creating multiple simulated dimensions
- hyperreal number
- Any of a set of numbers which extends the set of real numbers by including infinitesimals and infinities, and is used in non-standard analysis
- illegal number
- a number that represents information which is illegal to possess, utter or propagate. Any information that can be represented in binary format is, ipso facto, representable as a number, and therefore if the information itself is illegal in some way, the pure number itself may be called illegal.Phil Carmody. "." URL accessed on 2007-05-08.Thomas C Greene. "", The Register, 2001-03-19. Retrieved on 2007-05-08."." URL accessed on 2007-05-09
- imaginary number
- A number of the form ai, where a is a real number and i2 = −1; a complex number whose real part is zero
- independence number
- the number of vertices in a maximum independent set of a given graph, often denoted as \alpha = \alpha(G)
- irrational number
- Any real number that cannot be expressed as a ratio of two integers
- lepton number
- A quantum number related to the difference between the number of leptons and antileptons in a system
- look out for number one
- To act in one's own interests; to act in a manner advantageous primarily to oneself
- lose the number of one's mess
- to die, to perish
Shore folk think sailors are heartless, and that when a poor chap is lost overboard, they only say that So-and-so has lost the number of his mess! and, after having an auction over his kit in the fo'c's'le, then dismiss him from their memory! — J.C. Hutcheson, Fritz and Eric, 1880.
- magic number
- A metric used to determine a team's required performance to make the playoffs
By extension, the lowest such number that assures a team a playoff berth.
- magic number
- the number of neutrons or protons in nuclei which are required to fill the major quantum shells, and thus produce exceptionally stable nuclei - 2, 8, 20, 28, 50, 82 & 126
- magic number
-
a hash code, such as those used by some webmail servers to keep track of sessions.
- mass number
- The total number of protons and neutrons in an atomic nucleus
- matching number
- the number of edges in a maximum matching, often denoted as \nu = \nu(G)
- mesh number
- A measure of fineness of a mesh: the numerical value indicates the number of openings per linear inch. The smaller the mesh number, the larger particles can pass through the mesh
- natural number
- a member of the set of natural numbers - a positive integer (set of )
- natural number
- a member of the set of natural numbers - a non-negative integer (set of )
- neutron number
- The number of neutrons in the nucleus of an atom or isotope
- number
- Poetic metres; verses, rhymes
Griefe brought to numbers cannot be so fierce, / For, he tames it, that fetters it in verse.
- number
- A sequence of digits and letters used to register people, auotmobiles, and various other items
- number
- A numeral: a symbol for a non-negative integer
The number 8 is usually made with a single stroke.
- number
- A performance; especially, a single song or song and dance routine within a larger show
For his second number, he sang The Moon Shines Bright.
- number
- Quantity
His army is vast in number.
- number
- To total or count; to amount to
I don’t know how many books are in the library, but they must number in the thousands.
- number
- A marijuana cigarette, or joint; also, a quantity of marijuana bought form a dealer
Back at his place again, Doc rolled a number, put on a late movie, found an old T-shirt, and sat tearing it up into short strips .
- number
- An item of clothing, particularly a stylish one
I doubt the sexy number you wore earlier tonight fell from the sky..
- number
- A person
He had to focus on the mission, staying alive and getting out, not on the sexy number rubbing up against him.
- number
- To label (items) with numbers; to assign numbers to (items)
Number the baskets so that we can find them easily.
- number
- Indicating the position of something in a list or sequence. Abbreviations: No or No., no or no. (in each case, sometimes written with a superscript "o", like Nº or №). The symbol "#" is also used in this manner
Horse number 5 won the race.
- number
- An abstract entity used to describe quantity
Zero, one, -1, 2.5, and pi are all numbers.
- number
- A member of one of several classes: natural numbers,integers, rational numbers, real numbers, complex numbers, quaternions
The equation e^{i\pi}+1=0 includes the most important numbers: 1, 0, \pi, i, and e.
- number
- Of a word or phrase, the state of being singular, dual or plural, shown by inflection
Adjectives and nouns should agree in gender, number, and case.
- number
- A telephone number
When I agreed to go surfing with him he said, “Great, can I have your number?” Well, I don’t give my number to guys I don’t know.
- number
- Comparative form of numb: more numb
- number 2
- Alternative spelling of number two
- number 2 pencil
- A standard, ordinary pencil; one which is not colored or mechanical or in any other way unusual
I do the actual writing on my computer, of course, but I find that jotting down notes with a number 2 pencil gets my brain working in a new way, helps me see the facts from a different angle.
- number 2 pencil
- A pencil which produces a specific shade of dark gray. One can usually identify a number 2 pencil by looking for the number "2" conspicuously emblazoned on the pencil. Often required for test-taking and the completion of official forms
Mrs. Landry, I forgot to bring my number two pencils! Does that mean I flunk this test? Big tears filled Joey's eyes.
- number cruncher
- An accountant or other person who deals with the calculation of numbers as a profession
- number crunchers
- plural form of number cruncher
- number eight
- A player in the scrum, who controls the movement of the scrum, and can pick up the ball exiting the scrum
- number eleven
- the batsman who bats last; the worst batsman in the side
- number field
- A field which includes the rational numbers and has finite dimension as a vector space over the rational numbers
- number fields
- plural form of number field
- number games
- The use of inappropriate statistics to reflect a desired result (usually misleading, or omitting critical assumptions.)
- number line
- A line that graphically represents the real numbers as a series of points whose distance from an origin is proportional to their value
- number lines
- plural form of number line
- number needed to harm
- The number, statistically, of people who are exposed to something in order that one of them experience some adverse effect thereof
- number one
- The main goalkeeper of a team, so-called because they wear the number 1 on the back of their kit
- number one
- First; foremost; best
Commuting to work is the number one reason to own a car.
- number one
- oneself, being considered foremost, as by an egoist
- number one
- the single that has sold the most in a given period
- number one
- Urine; urination
- number one
- the most important person, notably who is in charge
- number one with a bullet
- superlative; impossible to beat
- number plate
- Either of a pair of rectangular metal plates, containing a mixture of letters and numbers fixed to the front and rear of a motor car showing that its identity has been registered with the DVLA
- number plates
- plural form of number plate
- number sign
- The character [[Appendix: Unsupported titles/Number sign|
- number sign
- ]] used to represent the word number; the hash sign; also called the pound sign in the US
- number signs
- plural form of number sign
- number system
- A set of numerals for representing numbers
- number theoretician
- A number theorist
- number theoreticians
- plural form of number theoretician
- number theorist
- A mathematician who specializes in number theory
- number theorists
- plural form of number theorist
- number theory
- The branch of pure mathematics concerned with the properties of integers
Factorization has driven many great discoveries in number theory.
- number two
- a first mate
- number two
- primary assistant; vice-leader
After showing great promise over the last 10 years, he made her his number two'.
- number two
- Feces; the act of defecation
I need to go number two.
- number-cruncher
- Alternative spelling of number cruncher
- number-crunching
- Any computing application that requires large amounts of numerical calculation
- number-theoretical
- Of or relating to number theory
The simple question of which numbers are divisible by others leads directly into many deep number-theoretical questions.
- number-theoretically
- In a manner which employs number theory
- octane number
- a measure of the antiknock properties of an automobile fuel; isooctane having an octane number of 100, a fuel with the same antiknock properties as a mixture of 90% isooctane and 10% heptane having an octane number of 90
- opposite number
- A person who holds a position in an organization that corresponds to that held by another person in an other organization; a counterpart
- ordinal number
- A word that expresses the relative position of an item in an ordered sequence
First, second and third are the ordinal numbers corresponding to one, two and three.
- ordinal number
- A generalized kind of number to denote the size of a well-ordered set
- ordinal number
- A number used to denote position in a sequence
In the expression a3, the 3 is an ordinal number.
- ordinal-number
- Attributive form of ordinal number, noun
- oxidation number
- the net sum of the negative, less the positive, charges on an atom
- p-adic number
- an element of an extention of the field of rational numbers based on the divisibility of integers by a prime number p
- perfect number
- A number that is the sum of all of its divisors except itself
The factors of 28 are 1, 2, 4, 7, 14 and 28, and 1 + 2 + 4 + 7 + 14 = 28, so 28 is a perfect number.
- phone number
- A telephone number
- practical number
- Any positive integer having the property that all smaller integers can be represented as sums of distinct divisors of it
- premium-rate telephone number
- A telephone number for which an extra charge is assessed to the caller, part of which is returned to the owner of the number
- prime number
- Any natural number greater than 1 divisible only by itself and 1
Every natural number greater than 1 can be factorized into prime numbers.
- prime-number
- Attributive form of prime number, noun
- private enterprise number
- A unique number as assigned by IANA to identify unique objects that are defined by an enterprise, developed to give objects a common naming system via the more common language of numbers
Applied primarily to LDAP and X.500 directories in locally-defined schema and in the Simple Network Management Protocol (SNMP) and related standards.
- pseudorandom number generator
- A device or algorithm that deterministically produces a succession of values that appear in an unpredictable sequence or apparently random order
- pseudorandom number generators
- plural form of pseudorandom number generator
- purely imaginary number
- An imaginary number
- pyramidal number
- A number that represents the number of items in a pyramid having a given number of sides and layers
- quantum number
- One of certain integers or half-integers that specify the state of a quantum mechanical system (such as an electron in an atom)
- random number
- Number allotted randomly using suitable generator (electronic machine or as simple "generator" as die)
- random number generator
- A device or algorithm that generates numbers selected at random or apparently at random. In many cases they actually select successive numbers deterministically and are more technically termed pseudorandom number generator
- random number generators
- plural form of random number generator
- rational number
- A real number that can be expressed as the ratio of two integers
- rational-number
- Attributive form of rational number, noun
rational-number approximation.
- real number
- An element of the set of real numbers.; the set of real numbers include the rational numbers and the irrational numbers, but not all complex numbers
Every integer is a real number, but not vice versa.
- real number
- A floating-point number
Even if you pass sqrt an integer, it returns a real number.
- real number line
- A geometric representation of the real number system
- real number system
- The complete ordered field (of real numbers)
- regnal number
- An ordinal number that distinguishes a monarch from others of the same name
- repfigit number
- A Keith number
- research octane number
- An octane number, used by the American Society for Testing and Materials to estimate the antiknock characteristics of a fuel at low engine speeds
- round number
- a rough approximation, especially one whose decimal representation ends in one or more zeroes
- round number
- a number whose decimal representation ends in one or more zeroes
- serial number
- a unique number, assigned to a particular unit of some product, to identify it
- silent number
- A telephone number not listed in the directory
- social insurance number
- A nine-digit number issued by the government of Canada to citizens, permanent residents, and some categories of temporary residents, for official identification in the provision of government services and income taxation. Abbreviation: SIN
- social security number
- A nine-digit number issued to citizens, permanent residents, and temporary (working) residents under section 205(c)(2) of the Social Security Act, codified as 42 U.S.C. § 405(c)(2). The number is issued to an individual by the Social Security Administration, an agency of the U.S. Federal Government. Its primary purpose is to track individuals for taxation purposes. Abbreviated as SSN. In recent years the SSN has become a de facto national identification number
- social security number
- A corresponding number in other countries
- sphenic number
- A positive integer that is the product of three distinct prime factors
- superparticular number
- A number in the form of a ratio where the dividend equals the divisor plus one
2/1 and 3/2 and 4/3 and 8/7 are all examples of superparticular numbers.
- take a number
- Recognize that many others are in the same situation; recognize that one's concerns are not of high priority; be prepared to wait
Even if they did decide to prosecute, the Justice Department would have to take a number and stand in a very long line.
- telephone number
- The sequence of digits used to identify a particular destination telephone in a network
- telephone number
- A large number
How much is that Rolls Royce? We are talking telephone numbers.
- tone number
- A number allocated to a syllable in various transliteration systems such as Hanyu Pinyin indicating the tone in which it is pronunced
When we type the syllable shi in pinyin, we should always remember to put its tone number after it to avoid confusion.
- transcendental number
- any irrational number that is not an algebraic number
- transfinite number
- any of several numbers which are infinite, but which are not equal to each other. They are represented by the Hebrew letter aleph (ℵ, א) with subscripts 0, 1, etc
At the beginning of Xanadu's second decade of development, Nelson was pleased with the project's caretakers. The last time he had come this close to having a working prototype was in 1972, when time ran out on his rented Nova. Now, the inventor's brainchild was more mature. Miller and Gregory created an addressing system that used transfinite numbers, an arcane area of calculus they had both studied in college. They called the new addresses tumblers; the tumbler system allowed readers to create links to any arbitrary span of bytes, whether or not the author had marked them. With tumblers, Miller and Gregory could give a similar address to every document and fragment of a document in Xanadu's sprawling domain of words, pictures, movies, and sounds. The address would not only point the reader to the correct machine, it would also indicate the author of the document, the version of the document, the correct span of bytes, and the links associated with these bytes.
- triangular number
- Any integer that is the sum of n natural numbers between 1 and n
Ten is a triangular number being the sum of 1, 2, 3, and 4.
- vanity number
- A phone number as a mnemonic whose letters translate into numbers
- wave number
- The number of waves per unit length; the reciprocal of wavelength
- what is your phone number
- Alternative form of what's your phone number?
- what's your phone number
- Used as question for the interlocutor to inform his or her phone number for subsequent communication
