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In algebraic geometry, a point with rational coordinates
a rational point of an algebraic variety is a point whose coordinates belong to a given field. If the field is not mentioned, the field of rational numbers
Rational_point
Quality of being agreeable to reason
Rationality is the quality of being guided by or based on reason. In this regard, a person acts rationally if they have a good reason for what they do
Rationality
Quotient of two integers
rational point is a point with rational coordinates (i.e., a point whose coordinates are rational numbers); a rational matrix is a matrix of rational
Rational_number
Complex numbers with unit norm and both real and imaginary parts rational numbers
rational point (a/c, b/c), which, in the complex plane, is just a/c + ib/c, where i is the imaginary unit. Conversely, if (x, y) is a rational point on
Group of rational points on the unit circle
Group_of_rational_points_on_the_unit_circle
Topics referred to by the same term
expressed as a ratio of two integers Rational point of an algebraic variety, a point defined over the rational numbers Rational function, a function that may
Rational_(disambiguation)
Algebraic variety defined within an affine space
are said k-rational or rational over k. In the common case where k is the field of real numbers, a k-rational point is called a real point. When the field
Affine_variety
Polynomial equation whose integer solutions are sought
hypersurface at a single other point, which is rational if and only if the line is rational (that is, if the line is defined by rational parameters). This allows
Diophantine_equation
Curve defined as zeros of polynomials
the rational normal curve, where all these polynomials are monomials. Any conic section defined over F with a rational point in F is a rational curve
Algebraic_curve
Complex number with rational components
Gaussian rational number is a complex number of the form p + qi, where p and q are both rational numbers. The set of all Gaussian rationals forms the
Gaussian_rational
Locus of the zeros of a polynomial of degree two
real numbers is called a real point. A rational point over Q {\displaystyle \mathbb {Q} } is called simply a rational point. By clearing denominators, one
Quadric
Integer side lengths of a right triangle
establishes that each rational point of the x-axis goes over to a rational point of the unit circle. The converse, that every rational point of the unit circle
Pythagorean_triple
Psychotherapy
Rational emotive behavior therapy (REBT), previously called rational therapy and rational emotive therapy, is an active-directive, philosophically and
Rational emotive behavior therapy
Rational_emotive_behavior_therapy
Class of models in the behavioral sciences
Rational choice modeling refers to the use of decision theory (the theory of rational choice) as a set of guidelines to help understand economic and social
Rational_choice_model
Subspace defined by a polynomial of degree 2 over a field
result that a smooth quadric over a field k is rational over k if and only if X has a k-rational point. That is, if there is a solution of the equation
Quadric_(algebraic_geometry)
Special point on a modular curve in mathematics
at the point s = 1. In particular if the elliptic curve has (analytic) rank 1, then the Heegner points can be used to construct a rational point on the
Heegner_point
Unproved conjecture in mathematics
(often called the Birch–Swinnerton-Dyer conjecture) describes the set of rational solutions to equations defining an elliptic curve. It is an open problem
Birch and Swinnerton-Dyer conjecture
Birch_and_Swinnerton-Dyer_conjecture
Disproved conjecture in number theory
} This is an elliptic curve with a rational point at v1 = −31/467. From this initial rational point, one can compute an infinite collection of
Euler's sum of powers conjecture
Euler's_sum_of_powers_conjecture
Mathematical proof technique using contradiction
function for rational points on an elliptic curve E. The context is of a hypothetical non-trivial rational point on E. Doubling a point on E roughly doubles
Proof_by_infinite_descent
Area of a right triangle with rational-numbered sides
area of a right triangle with three rational number sides. A more general definition includes all positive rational numbers with this property. The sequence
Congruent_number
Portfolio management and decision analysis tool
acquires Rational Focal Point". UNICOM Focal Point product page Videos on UNICOM Focal Point Application Portfolio Management with UNICOM Focal Point See also
Unicom_Focal_Point
Mathematical analysis of discontinuous points
that is continuous at every rational point, but discontinuous at every irrational point. The indicator function of the rationals, also known as the Dirichlet
Classification of discontinuities
Classification_of_discontinuities
Making of satisfactory, not optimal, decisions
Bounded rationality is the idea that rationality is limited when individuals make decisions, and under these limitations, rational individuals will select
Bounded_rationality
Algebraic curve in mathematics
Then the K-rational points of E are the points on E whose coordinates all lie in K, including the point at infinity. The set of K-rational points is denoted
Elliptic_curve
Fraction with denominator a power of two
In mathematics, a dyadic rational or binary rational is a number that can be expressed as a fraction whose denominator is a power of two. For example
Dyadic_rational
Describes rational torsion points on elliptic curves over the integers
} If P = ( x , y ) {\displaystyle P=(x,y)} is a rational point of finite order on E, for the elliptic curve group law, then: x and
Nagell–Lutz_theorem
Manifold or algebraic variety of dimension n in a space of dimension n+1
real point, which is defined over the rational numbers. It has no rational point, but has many points that are rational over the Gaussian rationals. A projective
Hypersurface
Application of quantum theory mathematics to cognitive phenomena
preferences in decision theory that seem paradoxical from a traditional rational point of view (e.g., preference reversals). Since the use of a quantum-theoretic
Quantum_cognition
Graph of an equation
if r is rational there is no non-trivial rational point (x, y) on this curve (that is, no point for which both x and y are non-zero rational numbers)
Lamé's_special_quartic
Software
Rational Rose was a development environment for Unified Modeling Language. It integrates with Microsoft Visual Studio .NET and Rational Application Developer
IBM_Rational_Rose
Idiom about self-destructive behavior
rejects the offer, neither player receives any money. From a purely rational point of view, the responder should never reject the proposer's offer. In
Cutting off one's nose to spite one's face
Cutting_off_one's_nose_to_spite_one's_face
Abelian group related to division algebras
principle would predict that if X has a rational point over all completions Kv of K, then X has a K-rational point. The Hasse principle holds for some special
Brauer_group
Branch of pure mathematics
properties of mathematical objects constructed from integers (for example, rational numbers), or defined as generalizations of the integers (for example, algebraic
Number_theory
British Islamic scholar (born 1979)
topics in his live streams, especially when he covers topics with a rational point of view. In addition, he has been criticised for his alleged advisory
Abu_Layth
Rational circle tangent to the real line
rational points. For each rational number p / q {\displaystyle p/q} , expressed in lowest terms, there is a Ford circle whose center is at the point (
Ford_circle
Number of "holes" of a surface
is connected non-singular projective curve of genus 1 with a given rational point on it. By the Riemann–Roch theorem, an irreducible plane curve of degree
Genus_(mathematics)
Discrete subgroup of the real projective special linear group of dimension 2
of PSL(2,Z) will carry z = 0 {\displaystyle z=0} to every rational number, and the rationals Q are dense in R. A linear fractional transformation defined
Fuchsian_group
Topics referred to by the same term
Archive for Rational Mechanics and Analysis rational thermodynamics This disambiguation page lists articles associated with the title Rational mechanics
Rational_mechanics
Mathematical idealization of the surface of a body
A point that belongs to k3 is called rational over k, or simply a rational point, if k is the field of rational numbers. A projective surface in a projective
Surface_(mathematics)
Principle that an action is rational if it maximizes one's self-interest
Rational egoism (also called rational selfishness) is the principle that an action is rational if and only if it maximizes one's self-interest. As such
Rational_egoism
Type of mathematical space
that is no restriction for F of characteristic zero). If X has an F-rational point, then it is isomorphic to G/P for some parabolic subgroup P of G. A
Generalized_flag_variety
Configuration management software
Rational Synergy is a software tool that provides software configuration management (SCM) capabilities for all artifacts related to software development
Rational_Synergy
Field of algebraic geometry
are given by rational functions rather than polynomials; the map may fail to be defined where the rational functions have poles. A rational map from one
Birational_geometry
Topics referred to by the same term
Rational approximation may refer to: Diophantine approximation, the approximation of real numbers by rational numbers Padé approximation, the approximation
Rational_approximation
way that the algebra splits over K if and only if the variety has a rational point over K. Francesco Severi (1932) studied these varieties, and they are
Severi–Brauer_variety
Topics referred to by the same term
Rational expression may refer to: A mathematical expression that may be rewritten to a rational fraction, an algebraic fraction such that both the numerator
Rational_expression
Non-singular point Normal point Parshin point Periodic point Pinch point Point (geometry) Point source Rational point Recurrent point Regular point, Regular
List of mathematical properties of points
List_of_mathematical_properties_of_points
Point not touching any other point
-rational point is closed, and if k {\displaystyle k} is algebraically closed then the closed points are exactly the k {\displaystyle k} -rational points
Closed_point
Unsolved problem in mathematics
y 3 ) {\displaystyle (x_{3},y_{3})} , such that each point is "double" another rational point on the curve ("double" in the sense of the group structure
Magic_square_of_squares
Model of humans as rational, self-interested agents
economic man, is the portrayal of humans as agents who are consistently rational and narrowly self-interested, and who pursue their subjectively defined
Homo_economicus
Economics concept
Rational expectations is a set of modeling assumptions describing how macroeconomic agents form expectations about the future under uncertainty. Under
Rational_expectations
{\displaystyle V} defined over K {\displaystyle K} has a K {\displaystyle K} -rational point. For each absolutely irreducible polynomial f ∈ K [ T 1 , T 2 , ⋯ ,
Pseudo algebraically closed field
Pseudo_algebraically_closed_field
Generalizations of codimension-1 subvarieties of algebraic varieties
isomorphism Cl(P1) ≅ Z. For any smooth projective curve X with a k-rational point, the degree homomorphism is surjective, and the kernel is isomorphic
Divisor_(algebraic_geometry)
Mathematical idealization of the trace left by a moving point
example, Fermat's Last Theorem may be restated as: For n > 2, every rational point of the Fermat curve of degree n has a zero coordinate. Algebraic curves
Curve
Data type approximating a real number
calculated to any desired precision. Rational number are used, for example, in Interpress from Xerox Corporation. A fixed-point data type uses the same, implied
Real_data_type
Standard example in game theory
game theory, the prisoner's dilemma is a thought experiment involving two rational agents, each of whom can either cooperate for mutual benefit or betray
Prisoner's_dilemma
On when a family of real, continuous functions has a uniformly convergent subsequence
{fnm} . By construction, fm converges at every rational point of I. Therefore, given any ε > 0 and rational xk in I, there is an integer N = N(ε, xk) such
Arzelà–Ascoli_theorem
Analogs of homology groups for algebraic varieties
where H n {\displaystyle H^{n}} is the class of a k {\displaystyle k} -rational point in P n {\displaystyle \mathbb {P} ^{n}} . For example, if Y {\displaystyle
Chow_group
Protestant Separatists from the Church of England
in 1827. In the 18th century, one group of Dissenters became known as "Rational Dissenters". In many respects they were closer to the Anglicanism of their
English_Dissenters
Set on which a group acts freely and transitively
particular reason to have a rational point; the standard Weierstrass model always does, namely the point at infinity, but you need a point over K to put C into
Principal_homogeneous_space
Methodic assignment of colors to elements of a graph
#P-hard at any rational point k except for k = 1 and k = 2. There is no FPRAS for evaluating the chromatic polynomial at any rational point k ≥ 1.5 except
Graph_coloring
Basic integral in elementary calculus
choose them in two different ways. The first way is to always choose a rational point, so that the Riemann sum is as large as possible. This will make the
Riemann_integral
Particular mapping that projects a sphere onto a plane
between the rational number points (x, y) on the unit circle (with y ≠ 1) and the rational points of the x-axis. If (m/n, 0) is a rational point on the x-axis
Stereographic_projection
Fixed-point theorem in algebraic geometry
acting regularly on a complete variety V having a k-rational point, then there is a G fixed-point of V. Borel (1991), Proposition 15.2 Borel, Armand (1956)
Borel_fixed-point_theorem
Process by which software is developed
The Rational Unified Process (RUP) is an iterative software development process framework created by the Rational Software Corporation, a division of
Rational_unified_process
Does the plane contains a dense set of points whose distances are all rational
θ 4 {\displaystyle \tan {\tfrac {\theta }{4}}} to be a rational number. For each such point, both sin θ 2 {\displaystyle \sin {\tfrac {\theta }{2}}}
Erdős–Ulam_problem
Elliptic curve
an integer point on a Mordell curve, then so is ( x , − y ) {\displaystyle (x,-y)} . If ( x , y ) {\displaystyle (x,y)} is a rational point on a Mordell
Mordell_curve
Number representing a continuous quantity
real numbers include the rational numbers, such as the integer −5 and the fraction 4 / 3. Real numbers that are not rational are irrational. Those real
Real_number
Conjecture in number theory
non-torsion rational point of an elliptic curve. A negative solution to the Erdős–Ulam problem on dense sets of Euclidean points with rational distances
Abc_conjecture
Logical paradox in decision-making theory
us on the level of rational argument, but begin by denouncing all argument; they may forbid their followers to listen to rational argument, because it
Paradox_of_tolerance
particularly in the field of algebraic geometry, a scheme X {\displaystyle X} has rational singularities, if it is normal, of finite type over a field of characteristic
Rational_singularity
'Best' approximation of a function by a rational function of given order
approximant is the "best" approximation of a function near a specific point by a rational function of given order. Under this technique, the approximant's
Padé_approximant
Used to count, measure, and label
centuries to include zero (0), negative numbers such as negative one (−1), rational numbers such as one half ( 1 2 ) {\displaystyle \left({\tfrac {1}{2}}\right)}
Number
Computer approximation for real numbers
floating-point format which allows for all IEEE 754 principles (see minifloat). By their nature, all numbers expressed in floating-point format are rational numbers
Floating-point_arithmetic
Questioning of claims lacking empirical evidence
Scientific skepticism or rational skepticism (also spelled scepticism), sometimes referred to as skeptical inquiry, is a position in which one questions
Scientific_skepticism
Philosophical terms
"instrumental rationality" and "value rationality" refer to two types of action identified by sociologist Max Weber. Instrumental rationality is a type of
Instrumental and value rationality
Instrumental_and_value_rationality
Algebraic variety
In mathematics, a rational variety is an algebraic variety, over a given field K, which is birationally equivalent to a projective space of some dimension
Rational_variety
Number that is not a ratio of integers
mathematics, the irrational numbers are all the real numbers that are not rational numbers; that is, irrational numbers are those that cannot be expressed
Irrational_number
Largest autonomous particular Catholic church
(d. 1308), a Friar Minor like Saint Bonaventure, argued, that from a rational point of view it was certainly as little derogatory to the merits of Christ
Latin_Church
relative scheme X → S, a k-rational point of X is an S-morphism Spec ( k ) → X {\displaystyle \operatorname {Spec} (k)\to X} . rational function An element
Glossary of algebraic geometry
Glossary_of_algebraic_geometry
Curve created by a geometric operation
\left(u^{2}+v^{2}\right)^{n}=u^{n}+v^{n}.} Any rational point on the Fermat curve has a corresponding rational point on this curve, giving an equivalent formulation
Inverse_curve
Group in arithmetic geometry
as the homogeneous spaces of A that have Kv-rational points for every place v of K, but no K-rational point. Thus, the group measures the extent to which
Tate–Shafarevich_group
Architectural movement
ISBN 0-670-58216-6. Summerson, Sir John (1948). Viollet-le-Duc and the rational point of view. Heavenly Mansions and other essays on Architecture. Wikimedia
Gothic_Revival_architecture
Field theory is the branch of algebra that studies fields
and division are defined and behave as the corresponding operations on rational numbers do. A field is thus a fundamental algebraic structure that is widely
Glossary_of_field_theory
{\displaystyle S} to X {\displaystyle X} . Moduli space Weil restriction Rational point Descent along torsors Shafarevich 1994, Ch. VI § 4.1. Shafarevich 1994
Functor represented by a scheme
Functor_represented_by_a_scheme
On sets of points with integer distances
theorem inspired the Erdős–Ulam problem on the existence of dense point sets with rational distances. Although there can be no infinite non-collinear set
Erdős–Anning_theorem
Tangent spaces in algebraic geometry
from Spec K[t]/(t2) to a scheme X over K correspond to a choice of a rational point x ∈ X(k) and an element of the tangent space at x. Therefore, one also
Zariski_tangent_space
Mathematical models of strategic interactions
of behavioral relations. It is now an umbrella term for the science of rational decision making in humans, animals, and computers. Modern game theory began
Game_theory
Algebraic structure with addition, multiplication, and division
and division are defined and behave as the corresponding operations on rational numbers do. A field is thus a fundamental algebraic structure that is widely
Field_(mathematics)
English writer and philosopher (1759–1797)
lack education. She suggests that both men and women should be treated as rational beings and imagines a social order founded on reason. After two ill-fated
Mary_Wollstonecraft
Kind of partial function between algebraic varieties
mathematics, in particular the subfield of algebraic geometry, a rational map or rational mapping is a kind of partial function between algebraic varieties
Rational_mapping
Method of representing curves and surfaces in computer graphics
Non-uniform rational basis spline (NURBS) is a mathematical model using basis splines (B-splines) that is commonly used in computer graphics for representing
Non-uniform_rational_B-spline
However, as the triple will always be rational as long as a and t are rational, we can obtain an infinity of rational triples by changing the value of t
Diophantus_II.VIII
2008 economics book by Tim Harford
economic principles to draw forth the rational elements of supposedly illogical behaviors to illustrate his point. The overwhelming gain paradox is a paradox
The_Logic_of_Life
Subset whose closure is the whole space
be dense in X if every point of X either belongs to A or else is arbitrarily "close" to members of A — for instance, the rational numbers are a dense subset
Dense_set
Relationships between music and mathematics
mathematics, for example by associating each regular temperament with a rational point on a Grassmannian. The chromatic scale has a free and transitive action
Music_and_mathematics
belongs to exactly one real line, the line through the point and its complex conjugate. Rational point Pottmann, Helmut; Wallner, Johannes (2009), Computational
Real_point
Mathematical concept describing isolated singularity of an algebraic surface
also called simple surface singularity, Kleinian singularity, or rational double point, is an isolated singularity of a complex surface which is modeled
Du_Val_singularity
Solution concept of a non-cooperative game
under certain conditions. The Nash equilibrium may sometimes appear non-rational in a third-person perspective. This is because a Nash equilibrium is not
Nash_equilibrium
Theorem in complex analysis
modified to give a rational function with poles only at z0. If z0 is the point at infinity, then by the above procedure the rational function (z − w)−1
Runge's_theorem
Brazilian UFO religion
Rational Culture (In Portuguese: Cultura Racional) is a Brazilian UFO religion derived from Umbanda, founded in 1935 in the city of Rio de Janeiro by the
Rational_Culture
RATIONAL POINT
RATIONAL POINT
Boy/Male
Indian
Talker, Speaker, Rational
Boy/Male
English
National protector.
Boy/Male
Hindu
Rational
Girl/Female
German, Greek
Noble; Kind; Rational
Girl/Female
Christian, German, Greek, Hebrew
Noble; Kind; Rational; Great Happiness
Boy/Male
American, Anglo, British, English, Teutonic
National Protector; Wealthy Defender
Boy/Male
Muslim/Islamic
Categorical (decision) talker, speaker, rational
Boy/Male
Tamil
Rational
Boy/Male
Muslim
Talker, Speaker, Rational
Boy/Male
Indian, Tamil
National Boy; Lord Krishna
Boy/Male
Gujarati, Hindu, Indian
Lord of Pleasure
Boy/Male
Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Telugu
Animated; Rational
Boy/Male
Tamil
Rational
Girl/Female
Indian
Optional
Girl/Female
Hindu, Indian
Rational
Boy/Male
Arabic, Muslim
National Leader
Boy/Male
Hindu, Indian, Tamil
Revolving; Pearl
Boy/Male
Hindu, Indian
National Player
Girl/Female
Hindu, Indian
Rational
Boy/Male
Hindu
Rational
RATIONAL POINT
RATIONAL POINT
Boy/Male
Hindu
The Moon, Dawn, The end of night, Pleasant early morning
Girl/Female
Muslim/Islamic
Courage
Boy/Male
Arabic, Muslim, Pashtun
Jewellery for the Nose
Boy/Male
Celtic
Raven.
Male
Greek
(ΚάστωÏ) Greek name KASTOR means "beaver." In mythology, Castor/Kastor and Pollux/Polydeukes ("very sweet") are the twin sons of Leda and are known as the Gemini twins.
Girl/Female
American, British, Christian, English, Finnish, French, Hebrew, Swedish
Little Favourable One; Full of Grace; Variant of Anne
Boy/Male
Indian, Sanskrit
Flash of Lightning
Male
Iranian/Persian
Contracted form of Persian Dârayavahush, DARAWESH means "possesses a lot; wealthy."
Girl/Female
Indian
Praising Allah, Holy
Girl/Female
French
Woman from Magdala.
RATIONAL POINT
RATIONAL POINT
RATIONAL POINT
RATIONAL POINT
RATIONAL POINT
a.
Of or pertaining to fractions or a fraction; constituting a fraction; as, fractional numbers.
a.
Not rational; void of reason or understanding; as, brutes are irrational animals.
n.
The state of being national; national attachment; nationality.
a.
Notional.
a.
Expressing the type, structure, relations, and reactions of a compound; graphic; -- said of formulae. See under Formula.
a.
Given to foolish or visionary expectations; whimsical; fanciful; as, a notional man.
a.
Involving an option; depending on the exercise of an option; left to one's discretion or choice; not compulsory; as, optional studies; it is optional with you to go or stay.
a.
Having reason, or the faculty of reasoning; endowed with reason or understanding; reasoning.
adv.
In a rational manner.
a.
Relatively small; inconsiderable; insignificant; as, a fractional part of the population.
a.
An explanation or exposition of the principles of some opinion, action, hypothesis, phenomenon, or the like; also, the principles themselves.
a.
Relating to the reason; not physical; mental.
v. t.
To supply with rations, as a regiment.
v. t.
To form a rational conception of.
a.
Of or pertaining to a nation; common to a whole people or race; public; general; as, a national government, language, dress, custom, calamity, etc.
a.
Agreeable to reason; not absurd, preposterous, extravagant, foolish, fanciful, or the like; wise; judicious; as, rational conduct; a rational man.
a.
Attached to one's own country or nation.
n.
A rational being.
a.
Fractional.
a.
Involving surds; not capable of being expressed in rational numbers; radical; irrational; as, a surd expression or quantity; a surd number.