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Function of several real variables
function of several real variables or real multivariate function is a function with more than one argument, with all arguments being real variables.
Function of a real variable
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
Several complex variables
The theory of functions of several complex variables is the branch of mathematics dealing with complex-valued functions f ( z 1 , z 2 , … , z n ) {\displaystyle
Real-valued function
Real-valued functions of a real variable (commonly called real functions) and real-valued functions of several real variables are the main object of study
Function (mathematics)
equal to the set R {\displaystyle \mathbb {R} } of real numbers, one has a function of several real variables. If the X i {\displaystyle X_{i}} are equal
Stationary point
point where the function "stops" increasing or decreasing (hence the name). For a differentiable function of several real variables, a stationary point
Critical point (mathematics)
a function of several real variables, a critical point is a value in its domain where the gradient is undefined or is equal to zero. The value of the
Differentiable function
In calculus (a branch of mathematics), a differentiable function of one real variable is a function whose derivative exists at each point in its domain
Parametrization (geometry)
of the system is generally determined by a finite set of coordinates, and the parametrization thus consists of one function of several real variables
Derivative
independent variable. Derivatives may be generalized to functions of several real variables. In this generalization, the derivative is reinterpreted