Also found in: Encyclopedia. electric constant n (General Physics) the permittivity of free space, which has the value 8.854 187 × 10–12 farad per metre. Symbol: εo Also called: absolute permittivity Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © Harper...
where i is the imaginary unit and L is the interaction Lagrangian, written in terms of quantum fields depending on the spacetime coordinates X. The T symbol means time-ordered. For the terminology used in this page, see for instance chapters IV and V, "The Scattering Matrix" and "The Feyn...
where i is the imaginary unit and L is the interaction Lagrangian, written in terms of quantum fields depending on the spacetime coordinates X. The T symbol means time-ordered. For the terminology used in this page, see for instance chapters IV and V, "The Scattering Matrix" and "The Feyn...
What is the meaning of ε in the epsilon-delta definition of limits? The symbol ε, also known as epsilon, represents the margin of error or the tolerance level in the definition of a limit. It is a small positive number that allows us to determine how close the function values must be...
The modulus symbol (absolute value) of the quantity is used just to stress on the fact that we do not know whether the error is negative, 0, or positive. Since the exact quantity Q is never known, we take Q as the quantity of (sufficiently) higher order accuracy and Q′ as the ...
It is well known that electromagnetic radiation from radiating elements (e.g., antennas, apertures, etc.) shows dependence on the element’s geometry shape in terms of operating frequencies. This basic principle is ubiquitous in the design of radiators i
The two definitions are not "the same idea expressed in different language". For all , there is a It's clearer to say "for each" than "for all" (in spite of the fact the the latex symbol for the quantifier is named "forall"). For example, it is true that "For each real ...
The crystal structure of the primitive orthorhombic epsilon'-(Al,Si)_4Cr phase has been determined by single-crystal X-ray diffraction analysis: Pbnm (No. 62), a = 3.4477(4) run, b = 2.0098(6) ran, c = 1.2467(6) nm, V= 8.6386(2) nm~3, Pearson symbol oP516-5.6, Z = 8, ...
These ants, of course, have no real brain to speak of. There’s no question of an ant being able to understand what a symbol is, let alone interpret it, let alone consciously follow an algorithm. All of the above is just fancy chemistry. And so Feser would, no doubt, say that the...
where 𝛿̂𝑙𝑙′δ^ll′ is the Kronecker symbol. These reflectances and transmittances correspond to the spectral peaks in the form of Lorentz contours with the full width at half maximum: 2𝛾=∑𝑙=1𝑁1𝜏𝑙.2γ=∑l=1N1τl. (8) For one channel, we have 𝑙=𝑙′l...