Cis or cis- may refer to:
Cis is a genus of tree-fungus beetle in the family Ciidae.
In mathematics, an equation is an equality containing one or more variables. Solving the equation consists of determining which values of the variables make the equality true. In this situation, variables are also known as unknowns and the values which satisfy the equality are known as solutions. An equation differs from an identity in that an equation is not necessarily true for all possible values of the variable.
There are many types of equations, and they are found in many areas of mathematics. The techniques used to examine them differ according to their type.
Algebra studies two main families of equations: polynomial equations and, among them, linear equations. Polynomial equations have the form P(x) = 0, where P is a polynomial. Linear equations have the form a(x) + b = 0, where a is a linear function and b is a vector. To solve them, one uses algorithmic or geometric techniques, coming from linear algebra or mathematical analysis. Changing the domain of a function can change the problem considerably. Algebra also studies Diophantine equations where the coefficients and solutions are integers. The techniques used are different and come from number theory. These equations are difficult in general; one often searches just to find the existence or absence of a solution, and, if they exist, to count the number of solutions.
WFM may refer to:
KIIS 1065 (official callsign 2WFM) is a commercial FM radio station in Sydney, Australia and is owned by the Australian Radio Network (ARN). The station was formerly known as 2UW, broadcasting on 1107 kHz AM, before converting to FM in 1994.
The station, now known as KIIS, began life as 2UW, commencing transmission on 13 February 1925 on 1125 kHz on the AM band. On 1 September 1935, the frequency changed to 1110 kHz and in 1978 changed again to 1107 kHz. 2UW was the home of many live radio plays and had studios for live programmes at Market Street in Sydney, near the intersection with George Street.
The management of 2UW moved the station to 365 Kent Street Sydney although for a time they retained the Market Street live audience theatre that had been used for live plays. One of its early breakfast presenters, Russ Walkington, had a character known as Gerald the Grasshopper who pre-dated Sammy Sparrow who appeared on 2UE with Gary O'Callaghan.
From the early 1960s, 2UW moved away from its older audience and actively pursued the youth market through the introduction of a Top 40 format in response to the music coming from the United States and Great Britain and to provide a vehicle for the up-and-coming Australian local rock scene.
Wired for Management (WfM) was a primarily hardware-based system allowing a newly built computer without any software to be manipulated by a master computer that could access the hard disk of the new PC to paste the install program. It could also be used to update software and monitor system status remotely. Intel developed the system in the 1990s; it is now considered obsolete.
WfM included the Preboot Execution Environment (PXE) and Wake-on-LAN (WOL) standards.
WfM has been replaced by the Intelligent Platform Management Interface standard for servers and Intel Active Management Technology for PCs.