Oval


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Oval

the. a cricket ground in south London, in the borough of Lambeth

Oval

Resembling an egg in shape, ellipsoidal or elliptical; it is duocentric with a long and short axis.

Oval

 

a closed convex plane curve. A convex curve is a curve that has no more than two real points in common with any line. The ellipse and the circle are examples of ovals. If an oval has a tangent at every point, then to any direction in the plane there correspond just two tangents parallel to that direction.

Many theorems deal with properties of ovals. We mention two such theorems. (1) On every oval there are at least four points at which the curvature reaches a maximum or minimum. This is the so-called four-vertex theorem. The ellipse has precisely four such points—the ends of the major and minor axes. (2) If we have an oval of constant width, that is, if the distance d between any two parallel tangents to the oval is the same for all directions, then the length of the oval is equal to π d. The circle is the simplest oval of constant width. Another example is the figure obtained (Figure 1) by drawing six arcs of circles with centers at the vertices of an equilateral triangle with side a, where three of the circles have radii c, c arbitrary, and three have radii a + c.

Figure 1

In algebraic geometry the term “oval” is also applied to closed connected components of plane algebraic curves. There, however, the component is not necessarily convex.

oval

[′ō·vəl]
(mathematics)
A curve shaped like a section of an egg.

oval

A marble chip which has been tumbled until a smooth oval shape has resulted; used for terrazzo concrete.
References in periodicals archive ?
It would also be the first time that Sri Lanka would play in the longest-format of the game at the Kensington Oval.
Jan 23: England vs Australia (John Davies Oval, Queenstown).
Sun, 28 May: India v New Zealand, The Oval (10h30): Aleem Dar and Bruce Oxenford (on-field), Ian Gould (third umpire), S.
com/2017/01/20/politics/trump-churchill-oval-office/) returned a bust of Winston Churchill to the Oval Office, and, despite initial reports that stated otherwise, has kept a bust of Martin Luther King Jr.
MIKE ATHERTON (115): first Test Australia at Trent Bridge, August 1989; last Test Australia at The Oval, August 2001.
Retractors Malleable 3"x6" made of surgical grade stainless steel compatible with above mentioned Bookwalter Retractor Oval Ring as well as above mentioned Ratchet Mechanism.
The silhouetted eucalypts, standing on the edge of an expanse of oval flatness, create a shape I've seen before in other loved places.
The Oval will also feature beautifully landscaped gardens and a cafeteria, complemented by a range of services, such as property management, 24-hour security and controlled access to the building and the two underground parking areas.
Oval Partners is a leading private equity investment firm that has an excellent reputation for systemically analyzing, structuring, and investing in information and technology enabled services.
All trucks certified in the program have passed a comprehensive 150-point inspection that is reviewed by Red Oval Management Team.
European rivals Ireland and Scotland will lock horns at Blacktown in Sydney, while India and Afghanistan will prepare for the tournament proper at the Adelaide Oval.
Gallagher, the recently acquired Giles operations and Oval - directly controlling PS1 billion of gross written premium from more than 70 locations, employing approximately 2,600 people.