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This is because a negative number multiplied by another negative number cancels the sign, and thus gives a positive number. If n is an odd integer, then (−1) n = −1. This is because there will be a remaining −1 after removing −1 pairs. Because of this, powers of −1 are useful for expressing alternating sequences.
Zero to the power of zero. Zero to the power of zero, denoted by 00, is a mathematical expression that is either defined as 1 or left undefined, depending on context. In algebra and combinatorics, one typically defines 00 = 1. In mathematical analysis, the expression is sometimes left undefined. Computer programming languages and software also ...
In arithmetic and algebra, the fourth power of a number n is the result of multiplying four instances of n together. So: n4 = n × n × n × n. Fourth powers are also formed by multiplying a number by its cube. Furthermore, they are squares of squares. Some people refer to n4 as n “ tesseracted ”, “ hypercubed ”, “ zenzizenzic ...
The natural base is a ubiquitous mathematical constant called Euler's number. To distinguish it, is called the exponential function or the natural exponential function: it is the unique real-valued function of a real variable whose derivative is itself and whose value at 0 is 1: for all , and. The relation for and real or complex allows general ...
The number e (e = 2.718...), also known as Euler's number, which occurs widely in mathematical analysis The number i , the imaginary unit such that i 2 = − 1 {\displaystyle i^{2}=-1} The equation is often given in the form of an expression set equal to zero, which is common practice in several areas of mathematics.
Exponentiation is when a number b, the base, is raised to a certain power y, the exponent, to give a value x; this is denoted =. For example, raising 2 to the power of 3 gives 8: = The logarithm of base b is the inverse operation, that provides the output y from the input x.
In mathematics, high superscripts are used for exponentiation to indicate that one number or variable is raised to the power of another number or variable. Thus y 4 is y raised to the fourth power, 2 x is 2 raised to the power of x, and the equation E = mc 2 includes a term for the speed of light squared.
Power series are useful in mathematical analysis, where they arise as Taylor series of infinitely differentiable functions. In fact, Borel's theorem implies that every power series is the Taylor series of some smooth function. In many situations, c (the center of the series) is equal to zero, for instance when considering a Maclaurin series.