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About mathematical functions
The mathematical concept of a function dates from the 17th century in connection with the development of calculus; for example, the slope d y / d x {\displaystyle
History of the function concept
History_of_the_function_concept
Work by Gottlob Frege
"Function and Concept" (German: "Funktion und Begriff") is a lecture delivered by Gottlob Frege in Jena at a meeting of the Jenaische Gesellschaft für
Function_and_Concept
Association of one output to each input
planet is a function of time. Historically, the concept was elaborated with the infinitesimal calculus at the end of the 17th century, and, until the 19th
Function_(mathematics)
Point to which functions converge in analysis
mathematics, the limit of a function is a fundamental concept in calculus and analysis concerning the behavior of that function near a particular input which
Limit_of_a_function
Mathematical function with no sudden changes
calculus and mathematical analysis, where arguments and values of functions are real and complex numbers. The concept has been generalized to functions between
Continuous_function
Order-preserving mathematical function
a monotonic function (or monotone function) is a function between ordered sets that preserves or reverses the given order. This concept first arose in
Monotonic_function
Fundamental unit of cognition
documented use in 1479. Concepts play multiple cognitive roles. They function as categories that group objects or events into classes and make it possible to
Concept
German philosopher, logician, and mathematician (1848–1925)
Enquiry into the Concept of Number, 2nd ed. Blackwell. 1891. "Funktion und Begriff." Translation: "Function and Concept" in Geach and Black (1980). 1892a
Gottlob_Frege
Branch of mathematics
corresponding concept in mechanics is the principle of least/stationary action. Functionals are often expressed as definite integrals involving functions and their
Calculus
Topics referred to by the same term
computer keyboards Function model, a structured representation of processes in a system Function object or functor or functionoid, a concept of object-oriented
Function
Linear map or polynomial function of degree one
polynomial function of degree zero (a constant polynomial) or one (a linear polynomial). For distinguishing such a linear function from the other concept, the
Linear_function
Category of cloud computing services
Function as a service is a "platform-level cloud capability" that enables its users "to build and manage microservices applications with low initial investment
Function_as_a_service
Transforming a function in such a way that it only takes a single argument
mathematics and computer science, currying is the technique of translating a function that takes multiple arguments into a sequence of families of functions, each
Currying
Function that preserves distinctness
In mathematics, an injective function (also known as injection, or one-to-one function) is a function f that maps distinct elements of its domain to distinct
Injective_function
Method of mathematical integration
mathematician Henri Lebesgue, is one way to make this concept rigorous and to extend it to more general functions. The Lebesgue integral is more general than the
Lebesgue_integral
Relationship of a signal transducer
susceptibility, impulse response or impedance; see also transfer function. The concept of a Green's function or fundamental solution of an ordinary differential equation
Linear_response_function
Theorem in mathematics
mathematical analysis, the inverse function theorem gives sufficient conditions for a function to have an inverse function. The essential idea is that if
Inverse_function_theorem
Mathematical relation consisting of a multi-variable function equal to zero
multivariable functions that are continuously differentiable. A common type of implicit function is an inverse function. Not all functions have a unique
Implicit_function
On converting relations to functions of several real variables
{\displaystyle y} algebraically, and the implicit function theorem gives analytic conditions under which there exists a function f {\displaystyle f} whose graph
Implicit_function_theorem
Relationship between derivatives and integrals
links the concept of differentiating a function (calculating its slopes, or rate of change at every point on its domain) with the concept of integrating
Fundamental theorem of calculus
Fundamental_theorem_of_calculus
Matrix of partial derivatives of a vector-valued function
the number of components of function values, then its determinant is called the Jacobian determinant. Both the matrix and (if applicable) the determinant
Jacobian matrix and determinant
Jacobian_matrix_and_determinant
Construct related to weighted sums and averages
function is a weighted sum or weighted average. Weight functions occur frequently in statistics and analysis, and are closely related to the concept of
Weight_function
Study of rates of change
are the derivative of a function, related notions such as the differential, and their applications. The derivative of a function at a chosen input equals
Differential_calculus
Multivariate derivative (mathematics)
scalar-valued differentiable function f {\displaystyle f} of several variables is the vector field (or vector-valued function) ∇ f {\displaystyle \nabla
Gradient
Functions such that f(–x) equals f(x) or –f(x)
decomposed as the sum of an even function and an odd function. The concept of even and odd functions appears to date back to the early 18th century, with
Even_and_odd_functions
Mathematical approximation of a function
function's derivatives at a single point. For most common functions, the function and the sum of its Taylor series are equal near this point. Taylor series
Taylor_series
Extension to C++ templates
evaluated at compile time. A concept may be associated with a template (class template, function template, member function of a class template, variable
Concepts_(C++)
Instantaneous rate of change (mathematics)
functions and many other functions can be differentiated using a concept known as the weak derivative. The idea is to embed the continuous functions in
Derivative
Formula for the derivative of an inverse function
calculus, the inverse function rule is a formula that expresses the derivative of the inverse of a bijective and differentiable function f in terms of the
Inverse_function_rule
Philosophical problem about Frege's distinction between concept and object
predication, higher-order reference and type theory. In Frege's mature work, concepts are treated as special kinds of functions from objects to truth-values
Concept_horse_paradox
Number
of a zero object, often denoted 0, and the related concept of zero morphisms, which generalize the zero function. The value zero plays a special role
0
Matrix of second derivatives
vector-valued functionPages displaying short descriptions of redirect targets Hessian equation Binmore, Ken; Davies, Joan (2007). Calculus Concepts and Methods
Hessian_matrix
Reason for a change under natural selection; in physiology, what a system does
sensation or locomotion in an animal. This concept of function as opposed to form (respectively Aristotle's ergon and morphê) was central in biological explanations
Function_(biology)
Special mathematical function defined as sin(x)/x
entire function. The normalized sinc function is the Fourier transform of the rectangular function with no scaling. It is used in the concept of reconstructing
Sinc_function
Concept in programming language design
being passed as an argument, returned from a function, and assigned to a variable. The concept of first- and second-class objects was introduced by Christopher
First-class_citizen
Function with a repeating pattern
function is a function that repeats its values at regular intervals. For example, the trigonometric functions, which are used to describe waves and other
Periodic_function
Term in educational psychology
Concept learning, also known as category learning, concept attainment, and concept formation, is defined by Bruner, Goodnow, & Austin (1956) as "the search
Concept_learning
Mapping arbitrary data to fixed-size values
differently. The hash function differs from these concepts mainly in terms of data integrity. Hash tables may use non-cryptographic hash functions, while cryptographic
Hash_function
Mathematical notion of infinitesimal difference
and the derivatives of functions. The term is used in various branches of mathematics such as calculus, differential geometry, algebraic geometry and
Differential_(mathematics)
Type of function in linear algebra
properties of a seminorm. Unlike seminorms, a sublinear function does not have to be nonnegative-valued and also does not have to be absolutely homogeneous.
Sublinear_function
Notion in calculus
calculus, the differential represents the principal part of the change in a function y = f ( x ) {\displaystyle y=f(x)} with respect to changes in the independent
Differential_of_a_function
Limit of a function One-sided limit Limit of a sequence Indeterminate form Orders of approximation (ε, δ)-definition of limit Continuous function Derivative
List_of_calculus_topics
Family of solutions to related differential equations
Bessel functions are a class of special functions that commonly appear in problems involving wave motion, heat conduction, and other physical phenomena
Bessel_function
Distinction in the philosophy of language
Evans, The Varieties of Reference, Oxford: Clarendon 1982, p. 8 "Function and Concept", p. 16. Cassin, B., Apter, E., Lezra, J., & Wood, M., eds., Dictionary
Sense_and_reference
Operation in mathematical calculus
negative. Integrals also refer to the concept of an antiderivative, a function whose derivative is the given function; in this case, they are also called
Integral
Antiderivative of the secant function
In calculus, the integral of the secant function can be evaluated using a variety of methods and there are multiple ways of expressing the antiderivative
Integral of the secant function
Integral_of_the_secant_function
Programming construct
related to the functional programming concept). A typical use of a function object is in writing callback functions. A callback in procedural languages
Function_object
Vector operator in vector calculus
for any sequence of volumes that contain x0 and approach zero volume. The result, div F, is a scalar function of x. Since this definition is coordinate-free
Divergence
Largest and smallest value taken by a function at a given point
maximum. In statistics, the corresponding concept is the sample maximum and minimum. A real-valued function f defined on a domain X has a global (or absolute)
Maximum_and_minimum
Topological space that locally resembles Euclidean space
naturally arise as solution sets of systems of equations and as graphs of functions. The concept has applications in computer-graphics given the need to
Manifold
Mathematical relation assigning a probability event to a cost
mathematical optimization and decision theory, a loss function or cost function (sometimes also called an error function) is a function that maps an event or
Loss_function
Theoretical framework
studies are relevant to various stages of concept formation. Semantics is fundamentally a study of concepts, the meaning that thinking beings give to
Conceptual_model
Functions of an angle
and later to indicate ratios of lengths, but as the function concept developed in the 17th–18th century, they began to be considered as functions of
Trigonometric_functions
Basic integral in elementary calculus
of the integral of a function on an interval. It defines the integral by approximating the region under the graph of a function by finite sums of areas
Riemann_integral
Concept in the analysis of dynamical systems
theory. A similar concept appears in the theory of general state-space Markov chains usually under the name Foster–Lyapunov functions. For certain classes
Lyapunov_function
Course designed to prepare students for calculus
fundamental concepts of variables and functions. His innovation is noted for its use of exponentiation to introduce the transcendental functions. The general
Precalculus
Value approached by a mathematical object
that a function (or sequence) approaches as the argument (or index) approaches some value. Limits of functions are essential to calculus and mathematical
Limit_(mathematics)
Design philosophy of 19th–20th centuries
Sullivan also credited his friend and mentor, John H. Edelmann, who theorized the concept of "suppressed function" with inspiration for this maxim. The
Form_follows_function
function. The concept was first defined by Iimura. Some variants of it were later defined by Yang, Chen and Deng, Herings, van-der-Laan, Talman and Yang
Direction-preserving_function
Process by which a quantum system takes on a definitive state
vector" (or "state reduction" for short) and "wave function collapse" are used to describe the same concept. A quantum state is a mathematical description
Wave_function_collapse
Object or record accepted as payment
payment for goods and services and repayment of debts, such as taxes, in a particular country or socio-economic context. The primary functions which distinguish
Money
Derivative of a function with multiple variables
In mathematics, a partial derivative of a function of several variables is its derivative with respect to one of those variables, with the others held
Partial_derivative
Integrals not expressible in closed-form from elementary functions
antiderivative of a given elementary function is an antiderivative (or indefinite integral) that is, itself, not an elementary function. A theorem by Liouville in
Nonelementary_integral
Approximation of a function by a polynomial
transcendental functions such as the exponential function and trigonometric functions. It is the starting point of the study of analytic functions, and is fundamental
Taylor's_theorem
Object that creates other objects
a factory is an object for creating other objects; formally, it is a function or method that returns objects of a varying prototype or class from some
Factory (object-oriented programming)
Factory_(object-oriented_programming)
Distance from a point to the boundary of a set
outside). The concept also sometimes goes by the name oriented distance function/field. Let Ω be a subset of a metric space X with metric d, and ∂ Ω {\displaystyle
Signed_distance_function
Formulation of classical mechanics
time-independent function W ( q ) {\displaystyle W(\mathbf {q} )} is sometimes called the abbreviated action or Hamilton's characteristic function and sometimes
Hamilton–Jacobi_equation
Technique in integral evaluation
with a trigonometric function of a new variable and the original differential with the differential of the trigonometric function. Integration by substitution
Integration_by_substitution
Hypothesis in cognitive neuroscience
associated with these functions. The concept of neuronal recycling resolves this paradox by suggesting that novel functions actually utilize and 'recycle' existing
Neuronal_recycling_hypothesis
Generalization of the concept of directional derivative
generalization of the concept of directional derivative in differential calculus. Named after René Gateaux, it is defined for functions between locally convex
Gateaux_derivative
Concept in complex analysis
of a function f if it is a zero of the function 1/f and 1/f is holomorphic (i.e. complex differentiable) in some neighbourhood of z0. A function f is
Zeros_and_poles
Method of solution to differential equations
equations and diffusion equations. In quantum mechanics, Green's function of the Hamiltonian is a key concept with important links to the concept of density
Green's_function
Mathematical rule for evaluating limits
evaluating the limit of a quotient of two functions, both of which tends to zero or infinity, by taking each function's derivative. The rule is named after
L'Hôpital's_rule
Scientific principles enabling the use of the calculus of variations
solved using variational calculus, and in this case, the variational principle is the following: The solution is a function that minimizes the gravitational
Variational_principle
Concept in economics and decision theory
maximize, i.e., an objective function. This kind of utility bears a closer resemblance to the original utilitarian concept, developed by moral philosophers
Utility
Topics referred to by the same term
Distribution function may refer to Cumulative distribution function, a basic concept of probability theory Distribution function (physics), a function giving
Distribution_function
Calculus of functions of several variables
the concept of limit along a path, we can then derive the definition for multivariate continuity in the same manner, that is: we say for a function f :
Multivariable_calculus
Formula in calculus
derivative of the composition of two differentiable functions z and y in terms of the derivatives of z and y. More precisely, if h = z ∘ y {\displaystyle h=z\circ
Chain_rule
Mathematical concept
inverse function of a function f (also called the inverse of f) is a function that undoes the operation of f. The inverse of f exists if and only if f
Inverse_function
Function that returns its argument unchanged
the concept of an identity morphism in category theory, where the endomorphisms of M {\displaystyle M} need not be functions. The identity function is
Identity_function
Interrelated entities that form a whole
surrounded and influenced by its environment, is described by its boundaries, structure and purpose and is expressed in its functioning. Systems are
System
Integration method to calculate volume
the function and the axis of rotation. This works only if the axis of rotation is horizontal (example: y = 3 or some other constant). If the function to
Disc_integration
Type of derivative in mathematics
mathematics, the derivative of a function at a point is the linear part of the best affine approximation to the function near the point. In one-variable
Derivative (multivariable calculus)
Derivative_(multivariable_calculus)
Theorem in mathematics
In calculus and real analysis, the mean value theorem (or Lagrange's mean value theorem) is a theorem about differentiable functions, roughly stating that
Mean_value_theorem
Operation on mathematical functions
two functions, f {\displaystyle f} and g {\displaystyle g} , and returns a new function f ∘ g {\displaystyle f\circ g} . When the composite function f ∘
Function_composition
Conditions for switching order of integration in calculus
non-negative measurable function rather than to an integrable function over its domain. The Fubini and Tonelli theorems are usually combined and form the Fubini–Tonelli
Fubini's_theorem
Differentiation under the integral sign formula
) , b ( x ) < ∞ {\displaystyle -\infty <a(x),b(x)<\infty } and the integrands are functions dependent on x , {\displaystyle x,} the derivative of this
Leibniz_integral_rule
Historical mathematical concept; form of derivative
time). Newton introduced the concept in 1665 and detailed them in his mathematical treatise, Method of Fluxions. Fluxions and fluents made up Newton's early
Fluxion
Differential calculus on function spaces
medium. One corresponding concept in mechanics is the principle of least/stationary action. Many important problems involve functions of several variables
Calculus_of_variations
Function that outputs either true or false
Boolean-valued function (sometimes called a predicate or a proposition) is a function of the type f : X → B, where X is an arbitrary set and where B is a
Boolean-valued_function
Mathematical method in calculus
that finds the integral of a product of functions in terms of the integral of the product of their derivative and antiderivative. It is frequently used
Integration_by_parts
Indefinite integral
function, primitive integral or indefinite integral of a function f is a differentiable function F whose derivative is equal to the original function
Antiderivative
Divergent sum of positive unit fractions
be cantilevered, and the average case analysis of the quicksort algorithm. The name of the harmonic series derives from the concept of overtones or harmonics
Harmonic_series_(mathematics)
Fundamental construction of differential calculus
for general normed vector spaces V , W {\displaystyle V,W} . Briefly, a function f : U → W {\displaystyle f:U\to W} , where U {\displaystyle U} is an open
Generalizations of the derivative
Generalizations_of_the_derivative
Serverless computing platform
Framework Serverless computing Function as a service Lambda function, the concept of an anonymous computing function, not bound to an identity, which
AWS_Lambda
Set of functions between two fixed sets
In mathematics, a function space is a set of functions between two fixed sets. Often, the domain and/or codomain will have additional structure which is
Function_space
Mapping involving integration between function spaces
maps a function from its original function space into another function space via integration, where some of the properties of the original function might
Integral_transform
Mathematical description of quantum state
quantum system. The most common symbols for a wave function are the Greek letters ψ and Ψ (lower-case and capital psi, respectively). According to the superposition
Wave_function
Graphical depicture of loss
quality, and helped fuel the continuous improvement movement. The concept of Taguchi's quality loss function was in contrast with the American concept of quality
Taguchi_loss_function
Sexual health concept
aspects of sexual function are described on the basis of a modified version of Masters and Johnson's work. The aspects of sexual function determined as being
Sexual_function
FUNCTION AND-CONCEPT
FUNCTION AND-CONCEPT
Surname or Lastname
English, German, and Jewish (Ashkenazic)
English, German, and Jewish (Ashkenazic) : metonymic occupational name for a maker of hoops and bands, etc., from Middle English band, bond, Middle High German, Middle Low German bant, German Band denoting something used for tying or binding: ‘hoop’, ‘metal band’, ‘fetter’, ‘shackle’.Old spelling of the Dutch cognates Bant, Bande, from Middle Dutch bant ‘band’.
Surname or Lastname
English and German
English and German : topographic name from Old English land, Middle High German lant, ‘land’, ‘territory’. This had more specialized senses in the Middle Ages, being used to denote the countryside as opposed to a town or an estate.English : topographic name for someone who lived in a forest glade, Middle English, Old French la(u)nde, or a habitational name from Launde in Leicestershire or Laund in West Yorkshire, which are named with this word.Norwegian : habitational name from any of three farmsteads so named, from Old Norse land ‘land’, ‘territory’ (see 1 above).
Female
Norwegian
Danish and Norwegian form of Greek Hanna, ANE means "favor; grace."
Surname or Lastname
English
English : from the Middle English personal name Rand(e), a short form of any of the various Germanic compound personal names with the first element rand ‘(shield) rim’, as for example Randolph.English : topographic name for someone who lived on the margin of a settlement or on the bank of a river (from Old English rand ‘rim’, used in a topographical sense), or a habitational name from a place named with this word, as for example Rand in Lincolnshire and Rand Grange in North Yorkshire.German : from a short form of any of the various compound names formed with rand- ‘rim’. Compare 1.German : topographic name from Middle High German, Middle Low German rand, rant ‘edge’, ‘rim’.
Surname or Lastname
English and German
English and German : nickname for someone with a deformed hand or who had lost one hand, from Middle English hand, Middle High German hant, found in such appellations as Liebhard mit der Hand (Augsburg 1383).Jewish (Ashkenazic) : nickname from German Hand ‘hand’ (see 1).Irish : Anglicized form of Gaelic Ó Flaithimh (see Guthrie), resulting from an erroneous association of the Gaelic name with the Gaelic word lámh ‘hand’. It is used as an English equivalent for several other names of Gaelic origin too, e.g. Claffey, Glavin, and McClave.Dutch : from a variant of hont ‘dog’, ‘hound’, either a derogatory nickname, or a habitational name for someone living at a house distinguished by the sign of a dog.
Girl/Female
Australian, Dutch
Loving and Musical
Female
Danish
, compassion, grace; and, prayers.
Female
Spanish
Portuguese and Spanish form of Latin Anna, ANA means "favor; grace."Â Compare with another form of Ana.
Male
English
Unisex pet form of English Andrew and Andrea, ANDY means "man; warrior."
Female
Serbian
(Bulgarian and Serbian Ðна): Bulgarian and Serbian form of Greek Hanna, ANA means "favor; grace."
Female
Finnish
Estonian and Finnish pet form of Greek Hanna, ANU means "favor; grace."
Girl/Female
Afghan, Arabic, Australian, Indian, Muslim
Fiction; Romance; Story
Female
Bulgarian
(Ðна), compassion, grace; and, prayers.
Female
Arthurian
, ("mother"); a war goddess, mother of the gods, and mother of Gawain.
Surname or Lastname
English, Scottish, Danish, Norwegian, Swedish, German, and Jewish (Ashkenazic)
English, Scottish, Danish, Norwegian, Swedish, German, and Jewish (Ashkenazic) : topographic name for someone who lived on patch of sandy soil, from the vocabulary word sand. As a Swedish or Jewish name it was often purely ornamental.Dutch and Belgian : reduced form of Van den Sand(e), Van den Zande, a habitational name from places such as Zande in West Flanders or various minor places named with zand ‘sand’.English and Scottish : from a short form of Alexander.French : from a Germanic personal name, Sando.
Girl/Female
Bengali, Indian
Fraction of Time
Boy/Male
German, Spanish
Famous Land
Boy/Male
Buddhist, Indian, Japanese
Mysterious Function
Boy/Male
Indian
Friction
Boy/Male
Hindu
An atom
FUNCTION AND-CONCEPT
FUNCTION AND-CONCEPT
Boy/Male
British, English
From the Gray Meadow
Girl/Female
Hindu, Indian
Name of a Lake
Boy/Male
Tamil
Sada Sivam | ஸதா ஷிவமÂ
Always silent
Girl/Female
Tamil
Aslunaki | அஸà¯à®²à¯à®‚நாகீ
Rocklike, Strong
Boy/Male
Indian
Noble Man
Girl/Female
Hindu
Boy/Male
African, German, Indian, Punjabi, Sikh, Swahili, Tamil
Strength; Energy; Powerful; Price
Boy/Male
Spanish
Red haired.
Boy/Male
Arabic, Indian, Muslim
Principles
Girl/Female
Australian, Danish, Swedish
Priceless
FUNCTION AND-CONCEPT
FUNCTION AND-CONCEPT
FUNCTION AND-CONCEPT
FUNCTION AND-CONCEPT
FUNCTION AND-CONCEPT
n.
The act of executing or performing any duty, office, or calling; per formance.
v. t.
To separate by means of, or to subject to, fractional distillation or crystallization; to fractionate; -- frequently used with out; as, to fraction out a certain grade of oil from pretroleum.
n.
The act of feigning, inventing, or imagining; as, by a mere fiction of the mind.
v. t.
To give sanction to; to ratify; to confirm; to approve.
n.
The act of joining, or the state of being joined; union; combination; coalition; as, the junction of two armies or detachments; the junction of paths.
v. t.
The act of uniting, or the state of being united; junction.
n.
The act of anointing, smearing, or rubbing with an unguent, oil, or ointment, especially for medical purposes, or as a symbol of consecration; as, mercurial unction.
a.
Pertaining to the function of an organ or part, or to the functions in general.
v. t.
To supply with an organ or organs having a special function or functions.
n.
The things sold by auction or put up to auction.
n.
The appropriate action of any special organ or part of an animal or vegetable organism; as, the function of the heart or the limbs; the function of leaves, sap, roots, etc.; life is the sum of the functions of the various organs and parts of the body.
n.
An angle upon which the value of some function depends; -- a term used more especially in connection with elliptic functions.
n.
The natural or assigned action of any power or faculty, as of the soul, or of the intellect; the exertion of an energy of some determinate kind.
n.
The act of anointing, or the state of being anointed; unction; specifically (Med.), the rubbing of ointments into the pores of the skin, by which medicinal agents contained in them, such as mercury, iodide of potash, etc., are absorbed.
n.
The course of action which peculiarly pertains to any public officer in church or state; the activity appropriate to any business or profession.
v. t.
To sell by auction.
a.
Pertaining to, or connected with, a function or duty; official.
n.
The place or point of union, meeting, or junction; specifically, the place where two or more lines of railway meet or cross.
n.
The office, duties, or functions of a minister, servant, or agent; ecclesiastical, executive, or ambassadorial function or profession.
n.
A quantity so connected with another quantity, that if any alteration be made in the latter there will be a consequent alteration in the former. Each quantity is said to be a function of the other. Thus, the circumference of a circle is a function of the diameter. If x be a symbol to which different numerical values can be assigned, such expressions as x2, 3x, Log. x, and Sin. x, are all functions of x.