complex hamtâft (#) Fr.: complexe 1) General: (n. & adj.) A whole comprised of many elements.
→ complex wave. From Fr. complexe, from L. complexus "surrounding, encompassing," p.p. of complecti "to embrace, encompass, include," from → com- "together" + plectere "to weave, twine." Hamtâft, from ham- "together," → com- + tâft past stem of tâftan, tâbidan "to twist, to spin, to bend, to crook," p.p. tâftah "spun, silk or linen cloth," loaned into E. taffeta (from O.Fr. taffetas, from It. taffeta); similarly Gk. tapetion "little carpet" is probably from this Iranian origin (from which tapestry, tapis); Proto-Ir. *tap- "to spin," related to tan-, tanidan "to spin; to stretch," → tension. |
complex conjugate hamyuq-e hamtâft (#) Fr.: conjugé A → complex number in which the → real part of the number remains the same, but i is replaced by -i. For example, the complex conjugate of x + iy is x - iy. Same as → conjugate complex number. |
complex dynamical variable vartande-ye tavânik-e hamtâft Fr.: variable dynamique complexe A → dynamical variable which has an → imaginary number part. |
complex Fourier series seri-ye Fourier-ye hamtâft Fr.: série de Fourier complexe The complex notation for the → Fourier series of a function f(x). Using → Euler's formulae, the function can be written in cimplex form as f(x) = Σ c_{n} e^{inx} (summed from -∞ to ∞), where the → Fourier coefficients are c_{n} = (1/2π)∫ f(x) e^{-inx} dx (integral from -π to +π). → complex; → Fourier series. |
complex fraction barxe-ye hamtâft Fr.: fraction complexe A fraction in which the → numerator or → denominator, or both, contain fractions. For example (3/5)/(6/7). Also called → compound fraction. |
complex function karyâ-ye hamtâft Fr.: fonction complexe A function whose → variables are → complex numbers. |
complex molecule molekul-e hamtâft Fr.: molécule complexe A molecule in the → interstellar medium comprising at least six atoms (e.g. Herbst & van Dishoeck, 2009, ARA&A). |
complex number adad-e hamtâft (#) Fr.: nombre complexe Any number of the form u = a + bi, where a and b are → real numbers and i imaginary, i.e. i^{2} = -1. |
complex organic molecule (COM) molekul-e orgânik-e hamtâft Fr.: molécule organique complexe A → complex molecule containing C, H, O, and N atoms and involved in life developing processes. See also → organic molecule. |
complex population porineš-e hamtâft Fr.: population complexe Same as → composite population. → complex; → population. |
complex wave mowj-e hamtâft (#) Fr.: onde complexe A wave that is composed of several frequencies. |
conjugate complex number adad-e hamtâft hamyuq (#) Fr.: nombre complexe conjugé The conjugate of a → complex number, expressed by ū = a - bi. The complex number and its conjugate have the same real part. Same as → complex conjugate. |
stellar complex hamtâft-e setâre-yi Fr.: complexe stellaire Any of the largest stellar assemblages consisting of the groupings of → star clusters, → stellar associations, and individual stars with sizes of 300-1000 → parsecs and ages of up to 100 millions years. Most stellar complexes are physical entities containing objects of common origin and are the birth places of most star clusters and associations. The brightest and youngest complexes are well-known stellar superstructures that outline the Galactic → spiral arms, and also include → H II regions, → giant molecular clouds, and → neutral hydrogen clouds (Efremov, Y. N., 1996, The Origins, Evolutions, and Densities of Binary Stars in Clusters, ASP Conf. Series, Vol. 90). |