Function of a real variable

natural sciences, a function of a real variable is a function whose domain is the real numbers ℝ, or a subset of ℝ that contains an interval of positive length

natural sciences, a function of a real variable is a function whose domain is the real numbers ℝ, or a subset of ℝ that contains an interval of positive length

Function of several real variables

a function of several real variables or real multivariate function is a function with more than one argument, with all arguments being real variables

a function of several real variables or real multivariate function is a function with more than one argument, with all arguments being real variables

Convex function

A function f is said to be (strictly) concave if −f is (strictly) convex. Suppose f {\displaystyle f} is a function of one real variable defined

A function f is said to be (strictly) concave if −f is (strictly) convex. Suppose f {\displaystyle f} is a function of one real variable defined

Real variable

Real variable may refer to: A variable taking real values, see Function of a real variable A free variable (archaic) Real versus nominal value (economics)

Real variable may refer to: A variable taking real values, see Function of a real variable A free variable (archaic) Real versus nominal value (economics)

Real analysis

analytic function of a real variable extends naturally to a function of a complex variable. It is in this way that the exponential function, the logarithm

analytic function of a real variable extends naturally to a function of a complex variable. It is in this way that the exponential function, the logarithm

Derivative

The derivative of a function of a real variable measures the sensitivity to change of the function value (output value) with respect to a change in its

The derivative of a function of a real variable measures the sensitivity to change of the function value (output value) with respect to a change in its

Complex analysis

traditionally known as the theory of functions of a complex variable, is the branch of mathematical analysis that investigates functions of complex numbers. It is

traditionally known as the theory of functions of a complex variable, is the branch of mathematical analysis that investigates functions of complex numbers. It is

Differentiable function

calculus (a branch of mathematics), a differentiable function of one real variable is a function whose derivative exists at each point in its domain. As a result

calculus (a branch of mathematics), a differentiable function of one real variable is a function whose derivative exists at each point in its domain. As a result

Characteristic function (probability theory)

characteristic function of any real-valued random variable completely defines its probability distribution. If a random variable admits a probability density

characteristic function of any real-valued random variable completely defines its probability distribution. If a random variable admits a probability density

Analytic function

analytic function is a function that is locally given by a convergent power series. There exist both real analytic functions and complex analytic functions, categories

analytic function is a function that is locally given by a convergent power series. There exist both real analytic functions and complex analytic functions, categories