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Topics referred to by the same term
Look up reference point in Wiktionary, the free dictionary. Reference point or similar may refer to: Reference point (physics), used to define a frame
Reference_point
Geographic coordinates of an airport
An aerodrome reference point (ARP), in some countries airport reference point, is the designated geographical location of an aerodrome. The geographic
Airport_reference_point
1990 studio album by Acoustic Alchemy
Released in 1990, Reference Point is the first album by Acoustic Alchemy released for jazz label GRP and their fourth album overall. The song "Caravan
Reference_Point
Topics referred to by the same term
Point of reference is the intentional use of one thing to indicate something else, and may refer to: Reference point (disambiguation), general usage Frame
Point_of_reference
Abstract coordinate system
rectangular Cartesian coordinates, a reference frame may be defined with a reference point at the origin and a reference point at one unit distance from the
Frame_of_reference
Method to measure temperature quantitatively
relation to convenient and stable parameters or reference points, such as the freezing and boiling point of water. Absolute temperature is based on thermodynamic
Scale_of_temperature
Aspect of city planning used in ancient Rome
city, an umbilicus (umbilicus urbis, "city navel") represented the reference point used by the city planners to map out the city spaces, including the
Umbilicus_(reference_point)
Material testing procedure that makes a very small mark in a surface
further into the specimen and soon reaches a user-defined value. At this point, the load may be held constant for a period or removed. The area of the
Nanoindentation
Method of spatial referencing
typically the distance traveled from a fixed point, such as a milestone. It is an alternative to referencing by geographic coordinates, which would involve
Linear_referencing
System to specify locations on Earth
longitude λ of a point on Earth's surface is the angle east or west of a reference meridian to another meridian that passes through that point. All meridians
Geographic_coordinate_system
British-bred Thoroughbred racehorse
Reference Point (26 February 1984– December 1991) was a British Thoroughbred race horse and sire. In a career which lasted from August 1986 to October
Reference_Point_(horse)
evaluate outcomes and express preferences relative to an existing reference point, or status quo. It is related to loss aversion and the endowment effect
Reference_dependence
In mains electricity, part of a circuit connected to ground or earth
systems, the neutral conductor is often connected to earth ground at the point of supply. Significant voltage unintentionally appearing on exposed conductive
Ground_and_neutral
Topics referred to by the same term
another. Reference or reference point may also refer to: Reference (computer science) Reference (C++) Reference (film), a 1985 Bulgarian film Reference, a citation
Reference_(disambiguation)
Semi-annual astronomical event where the Sun is directly above the Earth's equator
University Press. 1895. "First point of Aries". Oxford Reference. Retrieved 22 September 2026. "First point of Libra". Oxford Reference. Retrieved 22 September
Equinox
Possible grammatical tense distinctions
relative to the reference point, and "absolute-relative tense" (such as pluperfect), which expresses time relative to the reference point while also placing
Relative_and_absolute_tense
Product of a distance and physical quantity
defined with respect to a fixed reference point and involve physical quantities located some distance from the reference point. For example, the moment of
Moment_(physics)
Point of reference against which some others are calculated
A datum reference or just datum (plural: datums) is some geometrically important part of an object, such as a point, line, plane, hole, set of holes,
Datum_reference
Economic measurement
In economics, a base period or reference period is a point in time used as a reference point for comparison with other periods. It is generally used as
Base_period
Institution responsible for surveying and mapping the national land of Japan
Coordinating Committee for Earthquake Prediction. The Japanese water height reference point (日本水準原点, Nihon Suijun Genten) is installed in a small building in front
Geospatial Information Authority of Japan
Geospatial_Information_Authority_of_Japan
Reference point from which time is measured
an epoch or reference epoch is an instant in time chosen as the origin of a particular calendar era. The "epoch" serves as a reference point from which
Epoch
Thermodynamics material reference point
standard state of a material (pure substance, mixture or solution) is a reference point used to calculate its properties under different conditions. A degree
Standard_state
Height of a geographic location above a fixed reference point
geographic location is its height above or below a fixed reference point, most commonly a reference geoid, a mathematical model of the Earth's sea level as
Elevation
Scalar measure of the rotational inertia with respect to a fixed axis of rotation
parallel axis theorem is used to shift the reference point of the individual bodies to the reference point of the assembly. As one more example, consider
Moment_of_inertia
Point on the celestial sphere
northern hemisphere, and the autumnal equinox in the southern), used as a reference point in celestial coordinate systems. In diagrams using such coordinate
First_point_of_Aries
Function for incompressible divergence-free flows in two dimensions
is measured perpendicular to the plane of flow. The point A {\displaystyle A} is a reference point that defines where the stream function is identically
Stream_function
Line integral of the electric field
potential at the reference point is zero units. Typically, the reference point is earth or a point at infinity, although any point can be used. In classical
Electric_potential
Theorem in planar dynamics
from being reckoned about any reference point R r e f {\displaystyle \mathbf {R} _{ref}} to some final reference point R F {\displaystyle \mathbf {R}
Parallel_axis_theorem
Pair of equal magnitude but opposite direction forces
However, the moment (torque) of a couple is independent of the reference point P: Any point will give the same moment. In other words, a couple, unlike any
Couple_(mechanics)
Theory of behavioral economics
evaluate the utility of gains and losses relative to a certain "neutral" reference point regarding their current individual situation. Thus, rather than rationally
Prospect_theory
Fundamental study of potential theory
each point in space the work (energy transferred) per unit mass that would be needed to move an object to that point from a fixed reference point in the
Gravitational_potential
Point at which the resultant force of a pressure field acts on a body
the reference point from which the center of pressure is referenced, and the associated force vector allows the moment generated about any point to be
Center of pressure (fluid mechanics)
Center_of_pressure_(fluid_mechanics)
Reference frame for measuring location
geodetic reference datum, geodetic reference system, or geodetic reference frame, or terrestrial reference frame) is a global datum reference or reference frame
Geodetic_datum
Topics referred to by the same term
placed in an image for use as a point of reference Reference point (disambiguation), or origin of a frame of reference Fiducial cross section, in particle
Fiducial
Sentence, idea or formula that refers to itself
Self-reference is a concept that involves referring to oneself or one's own attributes, characteristics, or actions. It can occur in language, logic,
Self-reference
System to specify locations on Earth
A spatial reference system (SRS) or coordinate reference system (CRS) is a framework used to precisely measure locations on, or relative to, the surface
Spatial_reference_system
Grammatical tense
the past is a grammatical tense where the time reference is in the future with respect to a vantage point that is itself in the past. In English, future
Future_in_the_past
Illusion in which objects appear to roll uphill
difficult for a person to judge the slope of a surface, as a reliable reference point is missing, and misleading visual cues can adversely affect the sense
Gravity_hill
Time coordinate used in cosmology
reference. Einstein's theory of general relativity in an isotropic, homogeneous expanding universe provides a way to define a unique time reference.
Cosmic_time
models) and freedom of movements(Stochastic models). Examples include Reference point group mobility model, Manhattan mobility model and Freeway mobility
Mobility_model
Data type which allows a program to indirectly access a particular value in memory
memory address of the data, i.e. a reference is implemented as a pointer. For this reason a reference is often said to "point to" the data. Other implementations
Reference_(computer_science)
Location identifier for a circuit component
A reference designator (RefDes) unambiguously identifies the location of a component within an electrical schematic or on a printed circuit board. The
Reference_designator
Type of electric transformer
3-phase system to permit the grounding of that neutral to an earth reference point; to perform harmonic mitigation, as they can suppress triplet (3rd
Zigzag_transformer
Characteristic temperature for a substance
compound's normal boiling point and melting point can serve as characteristic physical properties for that compound, listed in reference books. The higher a
Boiling_point
Reference point in statistics
In statistics, an inherent zero is a reference point used to describe data sets which are indicative of magnitude of an absolute or relative nature. Inherent
Inherent_zero
Horizontal angle from north or other reference cardinal direction
point of interest is projected perpendicularly onto a reference plane (the horizontal plane); the angle between the projected vector and a reference vector
Azimuth
Celestial coordinate system
consistent frame of reference for observations. The tensor achieves consistency in part through its standardization of the reference point for gravity. The
Barycentric and geocentric celestial reference systems
Barycentric_and_geocentric_celestial_reference_systems
Fundamental concept of classical mechanics
relativity, an inertial frame of reference (also called an inertial space or a Galilean reference frame) is a frame of reference in which objects exhibit inertia:
Inertial_frame_of_reference
Directional planes
horizontal only at the point of reference, and (2) those straight lines contained in the plane but not passing by the reference point are not necessarily
Vertical_and_horizontal
1998 Canadian Supreme Court case on the ability of Quebec to legally secede from Canada
Reference Re Secession of Quebec, [1998] 2 SCR 217, often referred to as the Secession Reference, is a landmark judgment of the Supreme Court of Canada
Reference Re Secession of Quebec
Reference_Re_Secession_of_Quebec
Coordinate transformation of raster or vector dataset in geographic space
geographic space (usually a scanned map or aerial photograph) to a spatial reference system, thus locating the digital data in the real world. It is thus the
Georeferencing
Horse race
208th running of the Derby, and it was won by the pre-race favourite Reference Point. The winner was ridden by Steve Cauthen and trained by Henry Cecil
1987_Epsom_Derby
literatures because they help define a national identity or provide a common reference point for that country's culture. Other Western literature Category:Literature
Literature_by_country
Stage of society in postmodernism
function of an object has its reference point in the form of an object rather than function being the reference point for form. In other words, it describes
Hypermodernity
hydrology, crest is the highest level above a certain point (the datum point, or reference point) that a river will reach in a certain amount of time.
Crest_(hydrology)
Plane used to define orbital elements
the plane of reference, a zero-point must be defined from which the angles of longitude are measured. This is usually defined as the point on the celestial
Orbital_plane_of_reference
Topics referred to by the same term
Temperature reference point, usually defined by a phase change or triple point. This disambiguation page lists articles associated with the title Fixed point. If
Fixed_point
Modification using the principle of template matching
edge information to define a mapping from orientation of an edge point to a reference point of the shape. In the case of a binary image where pixels can be
Generalised_Hough_transform
Point on a route of travel
end of each "leg" (stage) of a journey. Hence, the term connotes a reference point in physical space, most often associated with navigation. For example
Waypoint
Topics referred to by the same term
associated with the title Reference clock. If an internal link incorrectly led you here, you may wish to change the link to point directly to the intended
Reference_clock
Optical illusion
relative to some reference point, and in darkness or in a featureless environment there is no reference point, so the position of the single point is undefined
Autokinetic_effect
Reference point in an electrical circuit from which voltages are measured
In electrical engineering, ground or earth may refer to reference ground – a reference point in an electrical circuit from which voltages are measured
Ground_(electricity)
British Thoroughbred racehorse
emerged as a top-class horse in 1987 when he defeated The Derby winner Reference Point in the Eclipse Stakes at Sandown. In 1988, he was the dominant middle-distance
Mtoto
serves as the reference point for measuring mean sea level for the North American Vertical Datum of 1988, which is the reference point for determining
Pointe-au-Père,_Quebec
Proposed mapping standard
ETRS89 coordinate reference system and the Lambert Azimuthal Equal-Area projection, with the centre of the projection at the point 52° N, 10° E and false
European_grid
Peak in Antarctica
used as a reference point for magnetic observations at Observation Island. This article incorporates public domain material from "Reference Peak". Geographic
Reference_Peak
Type of potential energy
bring a mass from a chosen reference point (often an "infinite distance" from the mass generating the field) to some other point in the field, which is equal
Gravitational_energy
Concept in oil and gas exploration
distance along a well between a point of interest and a reference point or surface. It is the most common method of reference for locations in the well, and
Depth_in_a_well
Algorithm
Closest Point algorithm keeps one point cloud, the reference or target, fixed, while transforming the other, the source, to best match the reference. The
Iterative_closest_point
Behavioral model of risky decision-making
attitudes towards gains (i.e. outcomes above the reference point) and losses (i.e. outcomes below the reference point) and care generally more about potential
Cumulative_prospect_theory
Unique point where the weighted relative position of the distributed mass sums to zero
any individual member of the system. The center of mass is a useful reference point for calculations in mechanics that involve masses distributed in space
Center_of_mass
hologram. As a result, usually reference beams are Gaussian beams or spherical wave beams (beams that radiate from a single point) which are fairly easy to
Reference_beam
Topics referred to by the same term
associated with the title Reference date. If an internal link incorrectly led you here, you may wish to change the link to point directly to the intended
Reference_date
Brevity code for NATO communications
reference point] Cue the laser spot search or tracker function on the specified laser code in relation to the specified reference point. Reference point
Multi-service tactical brevity code
Multi-service_tactical_brevity_code
Conceptual scale
judged by listeners to be equal in distance from one another. The reference point between this scale and normal frequency measurement is defined by assigning
Mel_scale
American historian, composer, and writer (born 1947)
Understanding Gender Identity. Reference Point Press, 2021. ISBN 1678201782 Important Black Americans in Science and Invention. Reference Point Press, 2022. ISBN 1678202886
Don_Nardo
Boundary of a stage on the geologic time scale
Stratotype Section and Point (GSSP), sometimes referred to as a golden spike, is an internationally agreed upon reference point on a stratigraphic section
Global Boundary Stratotype Section and Point
Global_Boundary_Stratotype_Section_and_Point
Aerial maneuver
horizon as a reference, which is typically between the nose and the wing-tip, out the side window (if the plane has side windows). This point can be anything
Barrel_roll
Alphabetic notation for Middle Chinese phonology
sources, rather than a reconstruction. It was introduced by Baxter as a reference point for his reconstruction of Old Chinese phonology. The centre of the
Baxter's transcription for Middle Chinese
Baxter's_transcription_for_Middle_Chinese
Distance from water surface to the keel of a ship
vessel, the deepest part. The keel establishes a commonly defined reference point to measure to. Keel depth is useful for determining safe operating
Keel_depth
Precision physical-layer synchronization
the synchronization packets to use the packet's arrival time as a reference point for clock synchronization. Because most of the non-deterministic propagation
Reference Broadcast Synchronization
Reference_Broadcast_Synchronization
Topics referred to by the same term
thermodynamics to indicate a specific arbitrarily chosen non-zero reference point (standard state). Plimsoll line or Plimsoll mark on a ship's hull,
Plimsoll
Time period of 1000 years
for periods of a thousand years that begin at the starting point (initial reference point) of the calendar in consideration and at later years that are
Millennium
1997 studio album by Stratovarius
Nostradamus. The album is viewed as a turning point for the Finnish power metal scene and a reference point for many emerging bands of the time. Steve Huey
Visions_(Stratovarius_album)
pages. Each year is annotated with one or more significant events as a reference point. 1820s in football Order imposed on folk football. Public schools started
Timeline of association football
Timeline_of_association_football
Coordinates comprising two distances and an angle
point positions around a main axis (a chosen directed line) and an auxiliary axis (a reference ray). The three cylindrical coordinates are: the point
Cylindrical_coordinate_system
Grammatical construction
the reference point ("I will be going to eat"). A strong example might be one that incorporates the precise difference in time between the reference point
Going-to_future
Geographic coordinate system
350 km lengthways and 220 km from North to South). The fundamental reference point of the LV03 coordinate system was the old observatory of Bern, nowadays
Swiss_coordinate_system
Technique in computer vision
. Rearranging the image reference point equation yields the following two linear equations for each reference point: ∑ j = 1 4 α i j f x x j c +
Perspective-n-Point
Topics referred to by the same term
dictionary. Elevation is the height of a geographic location above a fixed reference point. Elevation may also refer to: Elevation (ballistics), the angle between
Elevation_(disambiguation)
Depth of a vessel below its waterline
waterline, measured vertically to its hull's lowest point—its propellers, or keel, or other reference point. Draft varies according to the loaded condition
Draft_(hull)
Horse race held at Ascot Racecourse in 1987
Freedman's Reference Point, a three-year-old bay colt trained at Newmarket, Suffolk by Henry Cecil and ridden by the American jockey Steve Cauthen. Reference Point's
1987 King George VI and Queen Elizabeth Stakes
1987_King_George_VI_and_Queen_Elizabeth_Stakes
Westernmost point of Whidbey Island, Washington (state), United States
south of West Beach. The primary importance of Point Partridge is as the northern and eastern reference point for the dividing line between Puget Sound and
Point_Partridge
Topics referred to by the same term
refer to: Phase (waves), the angular displacement of a sinusoid from a reference point or time Phasor angle, angular component of the complex number representation
Phase_angle
Distinction in the philosophy of language
between sense and reference was an idea of the German philosopher and mathematician Gottlob Frege in 1892 (in his paper "On Sense and Reference"; German: "Über
Sense_and_reference
Set of data points in three-dimensional space
A point cloud is a discrete set of data points in space. The points may represent a 3D shape or object. Each point position has its set of Cartesian coordinates
Point_cloud
Graphical breakdown for problem solving
as well as to identify its potential solutions. They also provide a reference point to see how each piece fits into the whole picture of a problem. According
Issue_tree
In mathematics, straight line touching a plane curve without crossing it
self-crossing, the tangent at a reference point may still not be uniquely defined because the curve is not differentiable at that point although it is differentiable
Tangent
Datatype in C++
returns a (non-reference type) int and fnRef is an alias for fn const int& ref = 65; const int& ref is an lvalue reference to const int pointing to a piece
Reference_(C++)
Tendency of a processor to access nearby memory locations in space or time
reference: Temporal locality: If at one point a particular memory location is referenced, then it is likely that the same location will be referenced
Locality_of_reference
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