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Let an indirectly measurable variable be represented as a function of afinite number of directly measurable variables . In our previous researches we:1) represented the maximum inaccuracies of in first degree of approximation aslinear functions of the inaccuracies of ; 2) defined the spaces of the maximuminaccuracies and we defined a dimensionless scale for quality (accuracy)evaluation of an experiment in them; 3) introduced the maximum inaccuracies insecond degree of approximation.  In the current paper we prove that the maximum inaccuracies of in seconddegree of approximation are quadrics of the inaccuracies of and that theseforms describe certain types of quadric hypersurfaces of parabolic class.Moreover: 1) we give a complete algebraic classification of thesehypersurfaces; 2) we define a dimensionless scale for quality (accuracy)evaluation of the experiment given the maximum inaccuracies in second degree ofapproximation.

Complete algebraic classification of the hypersurfaces of the maximum inaccuracies of an indirectly measurable variable