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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
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
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
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
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)
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
Exponential function
rewritten as a b c x + d = ( a b d ) ( b c ) x . {\displaystyle ab^{cx+d}=\left(ab^{d}\right)\left(b^{c}\right)^{x}.} As functions of a real variable, exponential
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
Function (mathematics)
the reals" may refer to a real-valued function of a real variable, and this phrase does not mean that the domain of the function is the whole set of the
Graph of a function
f(x, y)). For a continuous real-valued function of two real variables, the graph is a surface. The concept of the graph of a function is generalized