Complex Numbers
* means conjugate j = i = sqrt(-1) = imaginary unit Find roots example: z2 = -4j Convert to exponential form first: z2 = 4e-jπ/2 |z2| = r2 = sqrt(02 + 42) = 4 |z| = r = 2 k = (0, 1 ...n where n = expon' of z) = 0, 1 arg(z2) = 2 arg(z) = -π/2 + 2kπ arg(z) = -π/4 + kπ Substitute values of k (0, 1) for z = |z|ejarg(z) = 2e-jπ/4, 2ej3π/4 |
Discrete Probability & Sets & Whatever
1. Binomial Distribution n = trials, x = successes, p = probability of success 2. Hypergeometric Distribution N = deck size, n = draws, X = copies of card, k = successes |
Matrix Manipulations
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Cheatography
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Discrete Math Cheat Sheet by Dois
Equations commonly used in Discrete Math
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