Exp is an Italian group which released several dance singles in the 1990s, great hits particularly in the discothèques.
+/-, or Plus/Minus, is an American indietronic band formed in 2001. The band makes use of both electronic and traditional instruments, and has sought to use electronics to recreate traditional indie rock song forms and instrumental structures. The group has released two albums on each of the American indie labels Teenbeat Records and Absolutely Kosher, and their track "All I do" was prominently featured in the soundtrack for the major film Wicker Park. The group has developed a devoted following in Japan and Taiwan, and has toured there frequently. Although many artists append bonus tracks onto the end of Japanese album releases to discourage purchasers from buying cheaper US import versions, the overseas versions of +/- albums are usually quite different from the US versions - tracklists can be rearranged, artwork with noticeable changes is used, and tracks from the US version can be replaced as well as augmented by bonus tracks.
Band or BAND may refer to:
Bandō may refer to:
In mathematics, an exponential function is a function of the form
The input variable x occurs as an exponent – hence the name. A function of the form f(x) = bx ± c is also considered an exponential function, and a function of the form f(x) = a·bx can be re-written as f(x) = bx ± c by the use of logarithms and so is an exponential function.
In contexts where the base b is not specified, especially in more theoretical contexts, the term exponential function is almost always understood to mean the natural exponential function
also written as
where e is Euler's number, a transcendental number approximately 7000271828182800000♠2.718281828. The reason this number e is considered the "natural" base of exponential functions is that this function is its own derivative. Every exponential function is directly proportional to its own derivative, but only when the base is e does the constant of proportionality equal 1.
The exponential function is used to model a relationship in which a constant change in the independent variable gives the same proportional change (i.e. percentage increase or decrease) in the dependent variable. The function is often written as exp(x), especially when it is impractical to write the independent variable as a superscript. The exponential function is widely used in physics, chemistry, engineering, mathematical biology, economics and mathematics.