# point

(redirected from Mathematical point)
Also found in: Dictionary, Thesaurus, Medical, Legal, Financial.

## point

1. short for vowel point
2. a pin, needle, or other object having such a point
3. Maths
a. a geometric element having no dimensions and whose position in space is located by means of its coordinates
b. a location
4. a promontory, usually smaller than a cape
5. a distinctive characteristic or quality of an animal, esp one used as a standard in judging livestock
6. any of the extremities, such as the tail, ears, or feet, of a domestic animal
7. Ballet the tip of the toes
8. Australian Rules football an informal name for behind
a. one of the 32 marks on the circumference of a compass card indicating direction
b. the angle of 11°15ʹ between two adjacent marks
c. a point on the horizon indicated by such a mark
10. Cricket
a. a fielding position at right angles to the batsman on the off side and relatively near the pitch
b. a fielder in this position
11. any of the numbers cast in the first throw in craps with which one neither wins nor loses by throwing them: 4, 5, 6, 8, 9, or 10
12. either of the two electrical contacts that make or break the current flow in the distributor of an internal-combustion engine
13. Brit a junction of railway tracks in which a pair of rails can be moved so that a train can be directed onto either of two lines
14. a piece of ribbon, cord, etc., with metal tags at the end: used during the 16th and 17th centuries to fasten clothing
15. Backgammon a place or position on the board
16. Brit
a. short for power point
b. an informal name for socket
17. the position of the body of a pointer or setter when it discovers game
18. Boxing a mark awarded for a scoring blow, knockdown, etc.
19. Ice hockey the position just inside the opponents' blue line

## Point

The smallest unit in a composition, depending on the scale of the work; it may be composed of straight lines and arcs, forms (flowing and curvilinear), or a combination.

## Point

a feature of an animal’s physical qualities used in evaluating an animal’s body conformation, breed traits, age, sexual development, health, productivity or performance, and breeding value. The points of an animal are considered collectively and in relation to one another. Different points are distinguished for different animal species and for the evaluation of different forms of productivity. A general evaluation is reached by adding up the points.

Figure 1. Principal points of a horse: (1) head, (2) neck, (3) wither, (4) shoulder, (5) point of shoulder, (6) forearm, (7) knee, (8) cannon, (9) pastern, (10) coronet, (11) fetlock, (12) thorax (ribs), (13) thigh, (14) back, (15) loin, (16) croup, (17) hoof, (18) stifle, (19) gaskin, (20) point of hock, and (21) metatarsus

The principal points of a horse are shown in Figure 1.

## Point

a fundamental concept in geometry. In systematic expositions of geometry, the point is usually regarded as one of the primitive concepts. In modern mathematics the elements of various spaces are called points. In n-dimensional Euclidean space, for example, a point is an ordered set of n numbers. The points of different spaces may be of a very different nature.

Points having special names are encountered in many areas of mathematics. In geometry, for example, the singular points of curves may be studied. Such points include cusps, isolated points, points of inflection, natural boundary points, nodes, points of osculation, and corner points. Mathematical analysis deals with such singular points as critical points of differential equations and singularities of analytic functions. In set theory, a number of points characterizing the properties of a given set have received special names—for example, limit points, density points, and boundary points.

## point

[pȯint]
(geography)
A tapering piece of land projecting into a body of water; it is generally less prominent than a cape.
(graphic arts)
A printer's unit of measurement, equivalent to 0.013837 inch (approximately ¹⁄₇₂ inch) or ¹⁄₁₂ pica; six lines of 12-point type measure 1 inch. Also known as printer's point; typography point.
(lapidary)
A unit of mass, used in measuring precious stones, equal to 0.01 metric carat, or to 2 milligrams.
(mathematics)
An element in a topological space.
One of the basic undefined elements of geometry possessing position but no nonzero dimension.
In positional notation, the character or the location of an implied symbol that separates the integral part of a numerical expression from its fractional part; for example, it is called the binary point in binary notation and the decimal point in decimal notation.
In marine operation, one thirty-second of a circle, or 11¼ degrees.

## point

2. A mason’s tool; See wasting.
3.See pointing.

## point

1. <unit, text> (Sometimes abbreviated "pt") The unit of length used in typography to specify text character height, rule width, and other small measurements.

There are six slightly different definitions: Truchet point, Didot point, ATA point, TeX point, Postscript point, and IN point.

In Europe, the most commonly used is Didot and in the US, the formerly standard ATA point has essentially been replaced by the PostScript point due to the demise of traditional typesetting systems and rise of desktop computer based systems running software such as QuarkXPress, Adobe InDesign and Adobe Pagemaker.

There are 20 twips in a point and 12 points in a pica (known as a "Cicero" in the Didot system).

Different point systems.

## point

(1) To move the cursor (pointer) onto a line or image on screen by rolling a mouse across the desk or by pressing the Arrow keys.

(2) In typography, a unit equal to 1/72nd of an inch. Points are used to measure the vertical height of a printed character. See typeface.
References in periodicals archive ?
From a mathematical point of view, that interest is also motivated by the fact that these hypersurfaces exhibit nice Bernstein-type properties.
It is the most complete form of expression of a decision motivation and from the mathematical point of view, can be translated as the ultimate goal of the analysis process (the objective) is to maximize the obtained effects or minimize their efforts.
The Liberty Stadium outfit needed to secure maximum points to keep the title race alive, albeit purely from a mathematical point of view.
It is evident that there has been a confounding of a mathematical point with a material object which just cannot be rationally sustained.
Originally published in 1973, this book was the first to analyze African culture from a mathematical point of view.
Initially from the mathematical point of view, the sort of intellectual skills that could be mechanized on an everyday basis might be dismissed as being relatively elementary in nature.
A singularity is a mathematical point at which space and time are infinitely distorted, where matter is infinitely dense, and where the rules of relativistic physics and quantum mechanics break down.
Approaching the paradox from a mathematical point of view, he concludes that there is no mathematical reason why the arrow has to be stationary at an instant.
The definition of singularities in general relativistic spacetimes is actually a tricky and not totally settled question, even from the mathematical point of view.
From a mathematical point of view, the relation of geometrical shape to spectrum remains far from completely understood, with more unsolved problems than answers.

Site: Follow: Share:
Open / Close