Chapter 12

Appendix

Abstract

Help for those who are not so familiar with basic mathematical tools such as vectors, scalars, and complex numbers. Electrical circuit equivalents with tissue electrical properties and their respective equations are listed. Also Caspar Wessel and the complex plane.

Keywords

Complex number; Phasor; Sine wave; Tissue electrical equivalent; Vector

12.1. Vectors and Scalars, Complex Numbers

Suppose we have a black box with one port = two terminals. Suppose that with sinusoidal excitation, all voltage differences and all currents inside are also sinusoidal. Suppose that inside there are only resistors. Then all current maxima and voltage maxima occur simultaneously, there are no delays, no phase shifts.
Suppose that inside the ...

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