**Index of a logarithm** — Index In dex, n.; pl. E. {Indexes}, L. {Indices}(?). [L.: cf. F. index. See {Indicate}, {Diction}.] [1913 Webster] 1. That which points out; that which shows, indicates, manifests, or discloses; as, the increasing unemployment rate is an index of … The Collaborative International Dictionary of English

**Exponent** — Ex*po nent, n. [L. exponens, entis, p. pr. of exponere to put out, set forth, expose. See {Expound}.] 1. (Alg.) A number, letter, or any quantity written on the right hand of and above another quantity, and denoting how many times the latter is… … The Collaborative International Dictionary of English

**Latin America, history of** — Introduction history of the region from the pre Columbian period and including colonization by the Spanish and Portuguese beginning in the 15th century, the 19th century wars of independence, and developments to the end of World War II.… … Universalium

**Proof of impossibility** — A proof of impossibility, sometimes called a negative proof or negative result , is a proof demonstrating that a particular problem cannot be solved, or cannot be solved in general. Often proofs of impossibility have put to rest decades or… … Wikipedia

**Compression ratio** — For compression ratio in data compression, see data compression ratio. The compression ratio of an internal combustion engine or external combustion engine is a value that represents the ratio of the volume of its combustion chamber from its… … Wikipedia

**Metabolic theory of ecology** — The metabolic theory of ecology (MTE) is an extension of Kleiber s law and posits that the metabolic rate of organisms is the fundamental biological rate that governs most observed patterns in ecology.[1] MTE is based on an interpretation of the… … Wikipedia

**Education of the Blind** — • Includes statistics and history Catholic Encyclopedia. Kevin Knight. 2006. Education of the Blind Education of the Blind … Catholic encyclopedia

**Signal-to-noise ratio** — For signal to noise ratio in statistics, see Cohen s d. Signal to noise ratio (often abbreviated SNR or S/N) is a measure used in science and engineering that compares the level of a desired signal to the level of background noise. It is defined… … Wikipedia

**List of oil field acronyms** — Contents 1 # 2 A 3 B 4 C … Wikipedia

**Orders of magnitude (numbers)** — The logarithmic scale can compactly represent the relationship among variously sized numbers. This list contains selected positive numbers in increasing order, including counts of things, dimensionless quantity and probabilities. Each number is… … Wikipedia