5 Complex Numbers and Vectors
In This Chapter
5.2 Trigonometric Form of Complex Numbers
5.3 Powers and Roots of Complex Numbers
In physics a quantity that has a magnitude and direction is represented by a vector.
A Bit of History In the quest to find solutions of equations, mathematicians of antiquity often encountered square roots of negative numbers such as √–5 and 1 + √–1. These numbers were called “fictitious” or “imaginary.” Over a period of several hundred years, mathematicians′ understanding and acceptance of the usefulness of these numbers slowly ...
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