What is the mathematical term for a twodimensional

closed curve having the shape of an elongated circle?

The paper, through the eye-movement experiment, obtains characteristics that influence product style, utilizes shape grammar to extract the contour of feature elements and transforms it to two-dimensional

closed curve, then makes similarity analysis on different feature elements via Fourier decomposition.

The s-v phase diagram is made up of many

closed curve and the Poincare section consists of a large number of points lying on a

closed curve.

Which, in order to analysis cyclic phenomena, must be a

closed curve hence a circular component.

In addition to the modified Moore curve, another

closed curve for defected ground structure is also proposed.

Reference [10] solves the conformal map from a

closed curve to a circle.

Plainly a borderline

closed curve of the figure which has the hole surrounds inwardly all figures except the figure itself and figures which its other borderline

closed curves surround inwardly respectively; yet the borderline

closed curve surrounds outwardly the figure and those figures which the other borderline

closed curves surround inwardly respectively, therefore we need merely to prove all figures at a planar map from any spherical map, to wit O.

However, since contour always has the form of

closed curve, we present curve distance as a better inherent feature for the contour.

The equations are generated by a complex vector field that is elliptic everywhere except along a simple

closed curve, explains Meziani (mathematics, Florida International U.

x'[member of][GAMMA]]d(x,x') between a point x and the

closed curve [GAMMA], here d(x,x') is the usual Euclidean distance in [R.

Now it's true that a parabola is an ellipse with it foci an infinite distance apart, so if we consider the parabola a

closed curve at infinity it is a

closed curve, but I doubt if many mathematicians would think it topologically equivalent to a

closed curve.

The plainness of the procedure reveals what might be needed for a

closed curve to split like the circle or the lemniscate.