**Square-cube law** — The square cube law was first mentioned in Two New Sciences (1638). The square cube law (or cube square law) is a principle, drawn from the mathematics of proportion, that is applied in engineering and … Wikipedia

**Cube rule** — The cube rule or cube law is an empirical observation regarding democratic elections under the first past the post system. The rule suggests that the party getting the most votes is over represented (and conversely, the party getting the least… … Wikipedia

**Rule** — Rule, n. [OE. reule, riule, OF. riule, reule, F. r[ e]gle, fr. L. regula a ruler, rule, model, fr. regere, rectum, to lead straight, to direct. See {Right}, a., and cf. {Regular}.] 1. That which is prescribed or laid down as a guide for conduct… … The Collaborative International Dictionary of English

**Rule joint** — Rule Rule, n. [OE. reule, riule, OF. riule, reule, F. r[ e]gle, fr. L. regula a ruler, rule, model, fr. regere, rectum, to lead straight, to direct. See {Right}, a., and cf. {Regular}.] 1. That which is prescribed or laid down as a guide for… … The Collaborative International Dictionary of English

**Rule of the road** — Rule Rule, n. [OE. reule, riule, OF. riule, reule, F. r[ e]gle, fr. L. regula a ruler, rule, model, fr. regere, rectum, to lead straight, to direct. See {Right}, a., and cf. {Regular}.] 1. That which is prescribed or laid down as a guide for… … The Collaborative International Dictionary of English

**Rule of three** — Rule Rule, n. [OE. reule, riule, OF. riule, reule, F. r[ e]gle, fr. L. regula a ruler, rule, model, fr. regere, rectum, to lead straight, to direct. See {Right}, a., and cf. {Regular}.] 1. That which is prescribed or laid down as a guide for… … The Collaborative International Dictionary of English

**Rule of thumb** — Rule Rule, n. [OE. reule, riule, OF. riule, reule, F. r[ e]gle, fr. L. regula a ruler, rule, model, fr. regere, rectum, to lead straight, to direct. See {Right}, a., and cf. {Regular}.] 1. That which is prescribed or laid down as a guide for… … The Collaborative International Dictionary of English

**Power law** — A power law is any polynomial relationship that exhibits the property of scale invariance. The most common power laws relate two variables and have the form:f(x) = ax^k! +o(x^k),where a and k are constants, and o(x^k) is of x. Here, k is… … Wikipedia

**Allometric law** — An allometric law describes the relationship between two attributes of living organisms, and is usually expressed as a power law:: y propto x^{a} ,! or in a logarithmic form: log y sim a log x ,!where a is the scaling exponent of the law. Methods … Wikipedia

**As a rule** — Rule Rule, n. [OE. reule, riule, OF. riule, reule, F. r[ e]gle, fr. L. regula a ruler, rule, model, fr. regere, rectum, to lead straight, to direct. See {Right}, a., and cf. {Regular}.] 1. That which is prescribed or laid down as a guide for… … The Collaborative International Dictionary of English