Practical analysis of functions of several variables in the Wolfram Mathematica environment

The basic principles of quasi-parametric analysis of functions of several variables are described, the practical implementation of finding acceptable values of function arguments ensuring the fulfillment of the basic rule in the form of inequality is carried out. The methodology is presented and the main operators of the classical analysis of functions of several variables are given. The classical version of the function analysis is supplemented by the study of the gradient and partial elasticities. A graphical interpretation of the analysis results in the Wolfram Mathematica environment is given.