Pocket Book of Electrical Engineering Formulas

Richard C. Dorf,Ronald J. Tallarida

• Publisher: CRC Press
• Year: 2018
• ISBN:
  9781351423977
• Edition: 1
• Topic: Technology & Engineering
• Subtopic: Electrical Engineering & Telecommunications
• Index: Technology & Engineering

Pocket Book of Electrical Engineering Formulas provides key formulas used in practically all areas of electrical engineering and applied mathematics. This handy, pocket-sized guide has been organized by topic field to make finding information quick and easy. The book features an extensive index and is an excellent quick reference for electrical engineers, educators, and students.

1	Elementary Algebra and Geometry

Algebra

1. Fundamental Properties (Real Numbers)

a + b = b + a	Commutative Law for Addition
(a+b) + c = a+(b + c)	Associative Law for Addition
a + 0 = 0 + a	Identity Law for Addition
a + (−a) = (−a)+a = 0	Inverse Law for Addition
a(bc) = (ab)c	Associative Law for Multiplication
$a\left(\frac{1}{a}\right)=\left(\frac{1}{a}\right)a=1,a\ne 0$	Inverse Law for Multiplication
(a)(1)=(1)(a)= a	Identity Law for Multiplication
ab = ba	Commutative Law for Multiplication
a(b+c) = ab+ac	Distributive Law

DIVISION BY ZERO IS NOT DEFINED

2. Exponents

For integers m and n

$a^n{a}^m=a^{n+m}$

$a^n/a^m=a^{n-m}$

${(a^n)}^m=a^{nm}$

${(ab)}^m=a^m{b}^m$

${(a/b)}^m=a^m/b^m$

3. Fractional Exponents

$a^{p/q}={(a^{1/q})}^p$

where a^1/q is the positive qth root of a if a > 0 and the negative qth root of a if a is negat...