Appendix B

Exponents, Logarithms, and Sensitivity to Change

Linear and nonlinear expressions that describe the behavior of physical quantities affecting security risk can provide insight into the sensitivity to change of scenario-dependent parameters. Let’s write a few examples of such expressions using the shorthand called exponents and observe this sensitivity firsthand.

We now know that r3 = r × r × r, r6 = r × r × r × r × r × r, r9 = r × r × r × r × r × r × r × r × r, and so on. According to the definition of exponents, the number of “r”s on the right-hand side of the equation corresponds exactly to the superscript above the r on the left side of the equation. If we substitute the number 10 for r, the value of these functions is a thousand, ...

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