# a level surface

A level surface $f^{-1}(1)$ for the function $f(x,y,z)=x^2+y^2+z^2-3xyz$

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### 3 responses to “a level surface”

1. prof dr mircea orasanu

in these cases are posed other situations as MONGE surfaces and PFAFF Equations associated of level SURFACES , and posted by prof dr mircea orasanu and prof drd horia orasanu and thus followed that integration is about, how it differs from Riemann integration and why we need to learn about the algebra of measurable setsOne proves theorems such as if is a refinement of partition then and (that is, as you make the refinement finer…with smaller intervals, the lower sums go up (or stay the same) and the upper sums go down (or stay the same) and then one can define to the
be infimum (greatest lower bound) of all of the possible upper sums and to the the supremum (least upper bound) of all of the possible lower sums. If we then declare that to be the (Riemann) integral of over

2. prof dr mircea orasanu

when is word a level surface must mention as observed prof dr mircea orasanu and prof drd horia orasanu and must posted by us ,so followed that these are used in Non holonomy and CONSTRAINTS IN OPTIMIZATIONS

3. Thanks; upon thinking about it it is a great motivator to study the A4 group. In addition it shows porting of circle, hyperbola intersections to higher dimensions and discrete symmetries. Occasionally problems in the American Mathematical Monthly deal with similar figures.