The mathematical theory of electricity and magnetism (1911)
Jeans, James Hopwood, Sir, 1877-1946 · Cambridge [Eng.] : University Press · leaf 271
e argument of z and is denoted by arg z. The representation of a complex quantity in a plane in this way is known as an Argand diagram. 310. Addition of complex quantities. Let P he z = x-t- iy, and let P bez = x + iy. The value of 2^ + / is {x + x) + i{y-]■ y), so that if Q representsthe value z… … Fig. 83. 308-311] Conjugate Functions 263 The matter may be put more simply by supposing the complex quantityz = x + iy represented by the direction and length of a line, such that itsprojections on two rectangular axes are x, y. For instance in fig. <S8, thevalue of z will be represented…
Electricity · Magnetism
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