In geometry, the line element or length element can be informally thought of as a line segment associated with an infinitesimal displacement vector in...

A two-line element set (TLE, or more rarely 2LE) or three-line element set (3LE) is a data format encoding a list of orbital elements of an Earth-orbiting...

who was killed in the 1966 University of Texas tower shooting. The line element for a black hole with a total mass equivalent M {\displaystyle M} , angular...

Euclidean geometry defines its line element as d s e 2 = d x 2 + d y 2 , {\displaystyle ds_{e}^{2}=dx^{2}+dy^{2},} the line element on Minkowski space is d s...

ambiguous Fraunhofer line designations are preceded by the element with which they are associated (e.g., Mercury e line and Helium d line). Because of their...

consists of fitting a line element of given length (a) in between two given lines (l and m), in such a way that the line element, or its extension, passes...

ASCII records can be handled efficiently by modern databases. The two-line element format lists the eccentricity (e), inclination (i), longitude of the...

loaded differential line element. It is defined as the ratio between the final length l and the initial length L of the material line. λ = l L {\displaystyle...

theorem Methods of contour integration Nachbin's theorem Line element Surface integral Volume element Volume integral Kwong-Tin Tang (30 November 2006). Mathematical...

In mathematics, a volume element provides a means for integrating a function with respect to volume in various coordinate systems such as spherical coordinates...

from the positive z axis, as in the physics convention discussed. The line element for an infinitesimal displacement from (r, θ, φ) to (r + dr, θ + dθ,...

Finite element method (FEM) is a popular method for numerically solving differential equations arising in engineering and mathematical modeling. Typical...

many forms including the traditional Position-Velocity vectors, Two-line element set (TLE), and Vector Covariance Matrix (VCM). State vectors are defined...

Propagation of NORAD Element Sets (PDF) (Report). Retrieved November 8, 2022. Vallado, David A., and Paul J. Cefola. "Two-line element sets-Practice and...

vector line element of the closed curve ∂ A {\displaystyle \partial A} , with magnitude equal to the length of the infinitesimal line element, and direction...

defending Normandy from Allied invasion. The Cointet-element formed the main barricade of the Belgian K-W Line, a tank barricade that was built between September...

integrating vector fields. Area element Divergence theorem Stokes' theorem Line integral Line element Volume element Volume integral Cartesian coordinate...

Extended periodic table Element 119 (Uue, marked here) in period 8 (row 8) marks the start of theorisations. An extended periodic table theorizes about...

decreases. The distributed-element model applies at all frequencies, and is used in transmission-line theory; many distributed-element components are made of...

of curves on the surface and the areas of regions on the surface. The line element ds may be expressed in terms of the coefficients of the first fundamental...

originally pitching it for a toy line. 13 Sentinels began production two years later, discarding the toy line element under Atlus. The production proved...

contour of the upper-case (capital). Central Line is the imaginary line in the middle of each line or line element which is a constitutive part of a graphic...

SGP4 due to the frequency of use of that model particularly with two-line element sets produced by NORAD and NASA. These models predict the effect of perturbations...

chemical element is a chemical substance whose atoms all have the same number of protons. The number of protons is called the atomic number of that element. For...

UnaL2 LINE 3′ element is an RNA element found in the UnaL2 LINE (long interspersed nuclear element) and partner SINE (short interspersed nuclear element) from...

{\begin{aligned}x&=\rho \cosh(\sigma )\\t&=\rho \sinh(\sigma ).\end{aligned}}} The line element in Rindler coordinates, i.e. Rindler space is d s 2 = − ρ 2 d σ 2 + d...

between two adjacent "particles" across their common line element, divided by the length of that line. Some components of the stress tensor can be ignored...

chart (on a static spherically symmetric spacetime), the metric (aka line element) takes the form g = − a ( r ) 2 d t 2 + b ( r ) 2 ( d r 2 + r 2 ( d θ...

debris Two-line element set (TLE) United States Space Surveillance Network Kelso, T.S. (January 1998). "Frequently Asked Questions: Two-Line Element Set Format"...

(see the figure above). Setting d t = 0 {\displaystyle dt=0} in the line element, we see that these have the ordinary Euclidean geometry, d σ 2 = d x...