In geometry, an envelope of a planar family of curves is a curve that is tangent to each member of the family at some point, and these points of tangency...

The envelope paradox dates back at least to 1943, when Belgian mathematician Maurice Kraitchik proposed a puzzle in his book Recreational Mathematics concerning...

In physics and engineering, the envelope of an oscillating signal is a smooth curve outlining its extremes. The envelope thus generalizes the concept of...

to hold a letter being sent by post. Envelope may also refer to: Envelope (mathematics), a curve, surface, or higher-dimensional object defined as being...

In mathematics and economics, the envelope theorem is a major result about the differentiability properties of the value function of a parameterized optimization...

but less than an accurate calculation or mathematical proof. The defining characteristic of back-of-the-envelope calculations is the use of simplified assumptions...

of curves Eccentricity (mathematics) Elliptic curve cryptography Envelope (mathematics) Fenchel's theorem Genus (mathematics) Geodesic Geometric genus...

\,\!} Chandrasekhar equation Chrystal's equation Caustic (mathematics) Envelope (mathematics) Initial value problem Picard–Lindelöf theorem Rozov, N.Kh...

In mathematics, the lower envelope or pointwise minimum of a finite set of functions is the pointwise minimum of the functions, the function whose value...

proposed by Jean-Jacques Moreau in 1965. The Moreau envelope has important applications in mathematical optimization: minimizing over M f {\displaystyle...

Snell envelope, used in stochastics and mathematical finance, is the smallest supermartingale dominating a stochastic process. The Snell envelope is named...

The United States of American Mathematical Olympiad (USaMO) is a highly selective high school mathematics competition held annually in the United States...

three-dimensional space has a cuboidal envelope. Two pairs of cells project to the upper and lower halves of this envelope, and the four remaining cells project...

these allow a constant-width channel between them for coolant. Envelope (mathematics) Evolute Goat grazing problem Involute gear Roulette (curve) Scroll...

storing tokens in clay envelopes was more significant for the development of mathematics; initially, because these clay envelopes were not transparent;...

intersect gives the appearance of Bézier curves (as in the mathematical concept of envelope of a family of straight lines). Quadratic Bézier curve are...

Mathematical optimization (alternatively spelled optimisation) or mathematical programming is the selection of a best element, with regard to some criteria...

In category theory and related fields of mathematics, an envelope is a construction that generalizes the operations of "exterior completion", like completion...

In mathematics, the lower convex envelope f ˘ {\displaystyle {\breve {f}}} of a function f {\displaystyle f} defined on an interval [ a , b ] {\displaystyle...

particles in the medium. In mathematics and electronics waves are studied as signals. On the other hand, some waves have envelopes which do not move at all...

Bolza surface First Hurwitz triplet Hermite constant Systoles of surfaces Systolic freedom Systolic category Envelope (mathematics) Bäcklund transform...

mathematics, the Morlet wavelet (or Gabor wavelet) is a wavelet composed of a complex exponential (carrier) multiplied by a Gaussian window (envelope)...

FSK, the peak envelope power bears no particular ratio or mathematical relationship to longer-term average power in distorted envelopes, such as a CW...

In mathematics, particularly in algebra, the injective hull (or injective envelope) of a module is both the smallest injective module containing it and...

In mathematics, the oscillation of a function or a sequence is a number that quantifies how much that sequence or function varies between its extreme...

the velocity with which the overall envelope shape of the wave's amplitudes—known as the modulation or envelope of the wave—propagates through space...

In mathematics and signal processing, an analytic signal is a complex-valued function that has no negative frequency components.  The real and imaginary...

In mathematics the Karoubi envelope (or Cauchy completion or idempotent completion) of a category C is a classification of the idempotents of C, by means...

lost or altered in their type or quantity, they were placed into clay envelopes shaped like hollow balls known as bullae (a bulla). Ownership and witness...

defined as the envelope of a line segment of fixed length that moves while keeping an end point on each of the axes. It is therefore the envelope of the moving...