| 释义 |
argand|ˈɑːgænd|
[from the inventor's name.]
1. Applied to a lamp invented by Aimé Argand about 1782, with a cylindrical wick, which allows a current of air to pass to both inner and outer surfaces of the flame, thus securing more perfect combustion and brighter light; also to a ring-shaped gas burner constructed on the same principle.
1790Roy in Phil. Trans. LXXX. 162 A simple Argand's burner. 1805Sir H. Davy ibid. XCV. 158 Exposed to the heat of an Argand lamp. 1832Babbage Econ. Manuf. xxiv. 237 An argand burner, whether used for consuming oil or gas. 1859M. Scott Tom Cringle ii 39 A large argand with a brilliant reflector. 1869Daily News 18 June, None of the fish-tails seem to be as economical for common gas as the argands.
2. Surname of Jean Robert Argand, a French mathematician (1768–1822), applied to a diagram used for the graphical representation of a complex number.
1908J. H. Jeans Math. Theory Electr. & Magnet. viii. 258 The representation of a complex quantity in a plane in this way is known as an Argand diagram. 1959G. & R. C. James Math. Dict. 20/1 Argand diagram, two perpendicular axes on one of which real numbers are represented and on the other pure imaginaries, thus providing a frame of reference for graphing complex numbers. |