In mathematics, a constant function is a function whose (output) value is the same for every input value. As a real-valued function of a real-valued argument...

intervals. Informally speaking, a step function is a piecewise constant function having only finitely many pieces. A function f : R → R {\displaystyle f\colon...

In mathematics, a locally constant function is a function from a topological space into a set with the property that around every point of its domain...

mathematical constant or physical constant are sometimes used to distinguish this meaning. A function whose value remains unchanged (i.e., a constant function)....

polynomial, and are generally non-constant functions. A coefficient is a constant coefficient when it is a constant function. For avoiding confusion, the coefficient...

Heaviside step function Negative number Rectangular function Sigmoid function (Hard sigmoid) Step function (Piecewise constant function) Three-way comparison...

domain. A nonzero constant P for which this is the case is called a period of the function. If there exists a least positive constant P with this property...

zero). When the function is of only one variable, it is of the form f ( x ) = a x + b , {\displaystyle f(x)=ax+b,} where a and b are constants, often real...

Constant-function market makers (CFMM) are a paradigm in the design of trading venues where a trading function and a set of rules determine how liquidity...

can be expressed as the ratio between two holomorphic functions (with the denominator not constant 0) defined on D: any pole must coincide with a zero of...