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In a notable study of power conducted by social psychologists John R. P. French and Bertram Raven in 1959, power is divided into five separate and distinct forms. [1][2] They identified those five bases of power as coercive, reward, legitimate, referent, and expert. This was followed by Raven's subsequent addition in 1965 of a sixth separate ...
Knuth's up-arrow notation. In mathematics, Knuth's up-arrow notation is a method of notation for very large integers, introduced by Donald Knuth in 1976. [1] In his 1947 paper, [2] R. L. Goodstein introduced the specific sequence of operations that are now called hyperoperations. Goodstein also suggested the Greek names tetration, pentation ...
The term hyperpower [4] is a natural combination of hyper and power, which aptly describes tetration. The problem lies in the meaning of hyper with respect to the hyperoperation sequence. When considering hyperoperations, the term hyper refers to all ranks, and the term super refers to rank 4, or tetration.
These conventions are used in combinatorics, [4] although Knuth's underline and overline notations _ and ¯ are increasingly popular. [ 2 ] [ 5 ] In the theory of special functions (in particular the hypergeometric function ) and in the standard reference work Abramowitz and Stegun , the Pochhammer symbol ( x ) n {\displaystyle (x)_{n}} is used ...
Each curve passes through the point (0, 1) because any nonzero number raised to the power of 0 is 1. At x = 1, the value of y equals the base because any number raised to the power of 1 is the number itself. In mathematics, exponentiation is an operation involving two numbers: the base and the exponent or power.
Calculator input methods. There are various ways in which calculators interpret keystrokes. These can be categorized into two main types: On an expression or formula calculator, one types in an expression and then presses a key, such as "=" or "Enter", to evaluate the expression. [4][5][6] There are various systems for typing in an expression ...
Harmonics (electrical power) In an electric power system, a harmonic of a voltage or current waveform is a sinusoidal wave whose frequency is an integer multiple of the fundamental frequency. Harmonic frequencies are produced by the action of non-linear loads such as rectifiers, discharge lighting, or saturated electric machines.
The cover of the book. Symbols of Power: At the Time of Stonehenge is a book dealing with the archaeology of hierarchical symbols in the British Isles during the Neolithic and Early Bronze Ages. Co-written by the archaeologists D.V. Clarke, T.G. Cowie and Andrew Foxon, it also contained additional contributions from other authors including John ...