- Plane curve
- Plane Plane, a. [L. planus: cf. F. plan. See {Plan}, a.]
Without elevations or depressions; even; level; flat; lying
in, or constituting, a plane; as, a plane surface.
[1913 Webster]
Note: In science, this word (instead of plain) is almost exclusively used to designate a flat or level surface. [1913 Webster]

{Plane angle}, the angle included between two straight lines in a plane.

{Plane chart}, {Plane curve}. See under {Chart} and {Curve}.

{Plane figure}, a figure all points of which lie in the same plane. If bounded by straight lines it is a rectilinear plane figure, if by curved lines it is a curvilinear plane figure.

{Plane geometry}, that part of geometry which treats of the relations and properties of plane figures.

{Plane problem}, a problem which can be solved geometrically by the aid of the right line and circle only.

{Plane sailing} (Naut.), the method of computing a ship's place and course on the supposition that the earth's surface is a plane.

{Plane scale} (Naut.), a scale for the use of navigators, on which are graduated chords, sines, tangents, secants, rhumbs, geographical miles, etc.

{Plane surveying}, surveying in which the curvature of the earth is disregarded; ordinary field and topographical surveying of tracts of moderate extent.

{Plane table}, an instrument used for plotting the lines of a survey on paper in the field.

{Plane trigonometry}, the branch of trigonometry in which its principles are applied to plane triangles. [1913 Webster]

*The Collaborative International Dictionary of English.
2000.*

### Look at other dictionaries:

**Plane curve**— Curve Curve, n. [See {Curve}, a., {Cirb}.] 1. A bending without angles; that which is bent; a flexure; as, a curve in a railway or canal. [1913 Webster] 2. (Geom.) A line described according to some low, and having no finite portion of it a… … The Collaborative International Dictionary of English**Plane curve**— In mathematics, a plane curve is a curve in a Euclidean plane (cf. space curve). The most frequently studied cases are smooth plane curves (including piecewise smooth plane curves), and algebraic plane curves. A smooth plane curve is a curve in a … Wikipedia**plane curve**— plokščioji kreivė statusas T sritis fizika atitikmenys: angl. plane curve vok. Flachkurve, f rus. плоская кривая, f pranc. courbe plane, f … Fizikos terminų žodynas**plane curve**— noun : a curve that lies wholly in a single plane … Useful english dictionary**plane curve**— noun the locus of points in the Euclidean plane that satisfies some geometric or algebraic definition … Wiktionary**Cubic plane curve**— A selection of cubic curves. See information page for details. Cubic curve redirects here. For information on polynomial functions of degree 3, see Cubic function. In mathematics, a cubic plane curve is a plane algebraic curve C defined by a… … Wikipedia**Quartic plane curve**— A quartic plane curve is a plane curve of the fourth degree. It can be defined by a quartic equation::Ax^4+By^4+Cx^3y+Dx^2y^2+Exy^3+Fx^3+Gy^3+Hx^2y+Ixy^2+Jx^2+Ky^2+Lxy+Mx+Ny+P=0.This equation has fifteen constants. However, it can be multiplied… … Wikipedia**Sextic plane curve**— A sextic plane curve is a plane curve of the sixth degree.Examples*Astroid *Atriphtaloid *Butterfly curve (algebraic) *Watt s curve … Wikipedia**Curve**— Curve, n. [See {Curve}, a., {Cirb}.] 1. A bending without angles; that which is bent; a flexure; as, a curve in a railway or canal. [1913 Webster] 2. (Geom.) A line described according to some low, and having no finite portion of it a straight… … The Collaborative International Dictionary of English**Curve of quickest descent**— Curve Curve, n. [See {Curve}, a., {Cirb}.] 1. A bending without angles; that which is bent; a flexure; as, a curve in a railway or canal. [1913 Webster] 2. (Geom.) A line described according to some low, and having no finite portion of it a… … The Collaborative International Dictionary of English