numerical constant
41Gravitational coupling constant — The gravitational coupling constant, αG, is a fundamental physical constant, the coupling constant characterizing the gravitational attraction between two elementary particles with charge and nonzero mass. αG is also a dimensionless quantity, so… …
42Cheeger constant (graph theory) — In mathematics, the Cheeger constant (also Cheeger number or isoperimetric number) of a graph is a numerical measure of whether or not a graph has a bottleneck . The Cheeger constant as a measure of bottleneckedness is of great interest in many… …
43Khinchin's constant — In number theory, Aleksandr Yakovlevich Khinchin proved that for almost all real numbers x , the infinitely many denominators a i of the continued fraction expansion of x have an astonishing property: their geometric mean is a constant, known as… …
44Strength constant — Proportionality constant of fundamental interaction. For example, Gravitational constant G is the strength constant of gravitational interaction, because gravitational force is proportional to its numerical value. Speed of light is the strength… …
45Electronic Numerical Integrator and Computer — ENIAC auf einem Bild der US Armee Der Electronic Numerical Integrator and Computer (ENIAC) war der erste rein elektronische digitale Universalrechner. Im Auftrag der US Armee wurde er ab 1942 von J. Presper Eckert und John W. Mauchly an der… …
46Electronical Numerical Integrator and Computer — ENIAC auf einem Bild der US Armee Der Electronic Numerical Integrator and Computer (ENIAC) war der erste rein elektronische digitale Universalrechner. Im Auftrag der US Armee wurde er ab 1942 von J. Presper Eckert und John W. Mauchly an der… …
47Reciprocal Fibonacci constant — The reciprocal Fibonacci constant, or ψ, is defined as the sum of the reciprocals of the Fibonacci numbers::psi = sum {k=1}^{infty} frac{1}{F k} = frac{1}{1} + frac{1}{1} + frac{1}{2} + frac{1}{3} + frac{1}{5} + frac{1}{8} + frac{1}{13} +… …
48fundamental constant — /ˌfʌndəmɛntl ˈkɒnstənt/ (say .funduhmentl konstuhnt) noun the value of one of certain basic physical quantities which remains unchanged under all known conditions, such as the charge and mass of an electron, the masses of a proton and a neutron,… …
49Planck's constant — [plaŋks, pläŋks] n. [after PLANCK Max (Karl Ernst Ludwig)] Physics a universal constant ( h) which gives the ratio of a quantum of radiant energy ( E) to the frequency (ν) of its source: it is expressed by the equation E = hν, and its approximate …
50Robbins constant — In geometry, Robbins constant, named after David P. Robbins, is the average distance between two points selected at random within a unit cube. Robbins constant can be expressed as [D. Robbins, Average distance between two points in a box ,… …
