What is Curved Line? Definition, Types, Examples, Facts

what is curve

Conic sections were applied in astronomy by Kepler.Newton also worked on an early example in the calculus of variations. Solutions to variational problems, such as the brachistochrone and tautochrone questions, introduced properties of curves in new ways (in this case, the cycloid). The catenary gets its name as the solution to the problem of a hanging chain, the sort of question that became routinely accessible by means of differential calculus.

However, in the last figure, the ant moved straight, and the distance it moved was the shortest. The movement from one point to another gives rise to straight or curved lines. A curved line is a type of line that is not straight and is bent. It is continuous and smooth, without any sharp turns. A downward curve is also known as a concave downward. A concave upward curve is also called a ‘convex downward’.

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By looking to see if it bends and modifies its trajectory at least once, a curve can be clearly spotted. Different curves are categorised according to a few characteristics. Apart from the geometry of curves, the curve shape is also used in graphs. If C is a curve defined by a polynomial f with coefficients in F, the curve is said to be defined over F. In mathematics, a curve (also called a curved line in older texts) is an object similar to a line, but that does not have to be straight.

A circle is a closed curve formed when a point moves in a plane such that it is at a constant distance from its center. The needs of geometry, and also for example classical mechanics are to have a notion of curve in space of any number of dimensions. In general relativity, a world line is a curve in spacetime. A plane simple closed curve is also called a Jordan curve. The bounded region inside a Jordan curve is known as Jordan domain.

  1. All these different types of curves on a graph are also referenced.
  2. In the case of a curve defined over the real numbers, one normally considers points with complex coordinates.
  3. The best examples of closed curves are circles, ellipses, and so on.

Closed Curve

what is curve

The best examples of closed curves are circles, ellipses, and so on. Algebraic curves can also be space curves, or curves in a space of higher dimension, say n. They are defined as algebraic varieties of dimension one. They may be obtained as the common solutions of at least n–1 polynomial equations in n variables. If n–1 polynomials are sufficient to define a curve in a space of dimension n, the curve is said to be a complete intersection. By eliminating variables (by any tool of elimination theory), an algebraic curve may be projected onto a plane algebraic curve, which however may introduce new singularities such as cusps or double points.

Topological curve

A curved shape can be two-dimensional, like circles, ellipses, parabolas, and arcs. Curved shapes can also be three-dimensional figures like spheres, cones, and cylinders. The definition of a curve includes figures that can hardly be called curves in common usage. For example, a fractal curve can have a Hausdorff dimension bigger than one (see Koch snowflake) and even a positive area. An example is the dragon curve, which has many other unusual properties.

The curve that changes direction while intersecting itself bitcoin mining what is it is a non-simple curve.If this curve is not closed it is an open non-simple curve and if the curve is closed, it is a closed non-simple curve. A curve which changes its direction and does not intersect with itself is referred to as a simple curve. If this curve is open it is an open simple curve, and if the curve is closed, it is a closed simple curve. A curve that points in the upward direction is called an upward curve. Both simple and non-simple curves can be open or closed but a simple curve does not cross itself whereas a non-simple curve crosses its own path at least once.

A plane algebraic curve is the zero set of a polynomial in two indeterminates. More generally, an algebraic curve is the zero set of a finite set of polynomials, which satisfies the further condition of being an algebraic variety of dimension one. If the coefficients of the polynomials belong to a field k, the curve is said to be defined over k. In the common case of a real algebraic curve, where k is the field of real numbers, an algebraic curve is a finite union of topological curves. When complex zeros are considered, one has a complex algebraic curve, which, from the topological point of view, is not a curve, but a surface, and is make money coding often called a Riemann surface. Although not being curves in the common sense, algebraic curves defined over other fields have been widely studied.

The given elastic supply token figures show some of the paths that the ant can take to reach from point A to point B. There is a sharp curve in the permanent way outside the station, so that a train is on you all of a sudden. The point where a curve is the highest or lowest is called a vertex. Arcs of lines are called segments, rays, or lines, depending on how they are bounded.

A simple curve changes direction but does not cross itself while changing direction. A curved line is one that is crooked and not straight. To put it another way, a curve is described as a collection of points that resemble a straight line that passes through two adjacent locations. We are aware that the straight line has zero curvature. Therefore, we can refer to a line as being curved if its curvature is greater than zero.

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