Ellipse

https://byjus.com/maths/ellipse
In Mathematics an ellipse is a curve on a plane that surrounds two fixed points called foci Find major and minor axes area and latus rectum of an ellipse with examples and solved problems at BYJU S

https://mathworld.wolfram.com/Ellipse.html
The ellipse is a conic section and a Lissajous curve An ellipse can be specified in the Wolfram Language using Circle x y a b If the endpoints of a segment are moved along two intersecting lines a fixed point on the segment or on the line that prolongs it describes an arc of an ellipse

https://www.cuemath.com/geometry/ellipse
An ellipse is the locus of a point whose sum of distances from two fixed points is a constant Its equation is of the form x 2 a 2 y 2 b 2 1 where a is the length of the semi major axis and b is the length of the semi minor axis

https://www.khanacademy.org/.../v/conic-sections-intro-to-ellipses
Learn all about ellipses in this video The standard form for an ellipse centered at the origin is x a y b 1 The semi major axis is the longest radius and the semi minor axis is the shortest radius The video also explains how to shift an

https://openstax.org/books/college-algebra-2e/pages/8-1-the-ellipse
An ellipse is the set of all points x y x y in a plane such that the sum of their distances from two fixed points is a constant Each fixed point is called a focus plural foci We can draw an ellipse using a piece of cardboard two thumbtacks a pencil and string Place the thumbtacks in the cardboard to form the foci of the ellipse

https://math.libretexts.org/Bookshelves/Algebra...
An ellipse is the set of all points x y in a plane such that the sum of their distances from two fixed points is a constant Each fixed point is called a focus plural foci We can draw an ellipse using a piece of cardboard two thumbtacks a pencil and string Place the thumbtacks in the cardboard to form the foci of the ellipse

https://www.mathsisfun.com/geometry/ellipse.html
You Can Draw It Yourself Put two pins in a board and then put a loop of string around them insert a pencil into the loop stretch the string so it forms a triangle and draw a curve It is an ellipse It works because the string naturally forces the same distance from pin to pencil to other pin

https://brilliant.org/wiki/conics-ellipse-general
An ellipse is a conic section that resembles an oval but is formally characterized by the following property there exist two points F 1 and F 2 inside the ellipse called focal points such that for every point P on the ellipse the quantity PF 1 PF 2 is constant where PF i denotes the distance from P to F i

https://www.britannica.com/science/ellipse
Ellipse a closed curve the intersection of a right circular cone see cone and a plane that is not parallel to the base the axis or an element of the cone It may be defined as the path of a point moving in a plane so that the ratio of its distances from a fixed point the focus and a fixed