curve of constant direction
1Curve of constant width — A Reuleaux triangle is a curve of constant width. The sides of the square are supporting lines: each touches the curve but does not intersect the interior. The Reuleaux triangle can be rotated whilst always touching each side of the square in a… …
2direction field — ▪ mathematics way of graphically representing the solutions of a first order differential equation without actually solving the equation. The equation y′ = f (x,y) gives a direction, y′, associated with each point (x,y) in the plane that must be …
3Planck constant — Planck s relation redirects here. For the law governing black body radiation, see Planck s law. Values of h Units 6.62606957(29)×10−34 J·s[1] 4.135 …
4Track transition curve — The red Euler spiral is an example of an easement curve between a blue straight line and a circular arc, shown in green …
5Z-order curve — Not to be confused with Z curve or Z order. Four iterations of the Z order curve …
6Parallel curve — An ellipse (red), its evolute (blue) and some parallel curves (green). Note how the parallel curves have cusps when they touch the evolute …
7Phase response curve — A phase response curve (PRC) illustrates the transient change in the cycle period of an oscillation induced by a perturbation as a function of the phase at which it is received. PRCs are used in various fields; examples of biological oscillations …
8Differential geometry of surfaces — Carl Friedrich Gauss in 1828 In mathematics, the differential geometry of surfaces deals with smooth surfaces with various additional structures, most often, a Riemannian metric. Surfaces have been extensively studied from various perspectives:… …
9mechanics — /meuh kan iks/, n. 1. (used with a sing. v.) the branch of physics that deals with the action of forces on bodies and with motion, comprised of kinetics, statics, and kinematics. 2. (used with a sing. v.) the theoretical and practical application …
10Tractrix — (from the Latin verb trahere pull, drag ), or tractrice, is the curve along which a small object moves, under the influence of friction, when pulled on a horizontal plane by a piece of thread and a puller that moves at a right angle to the… …
