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Mathematical visualization is used throughout mathematics, particularly in the fields of geometry and analysis. Notable examples include plane curves, space curves, polyhedra, ordinary differential equations, partial differential equations (particularly numerical solutions, as in fluid dynamics or minimal surfaces such as soap films), conformal ...
The plane-based approach to geometry may be contrasted with the approach that uses the cross product, in which points, translations, rotation axes, and plane normals are all modelled as "vectors". However, use of vectors in advanced engineering problems often require subtle distinctions between different kinds of vector because of this ...
The archetypical example is the real projective plane, also known as the extended Euclidean plane. [4] This example, in slightly different guises, is important in algebraic geometry, topology and projective geometry where it may be denoted variously by PG(2, R), RP 2, or P 2 (R), among other notations.
The equation = is an equation of a line in the projective plane (see definition of a line in the projective plane), and is called the line at infinity. The equivalence classes, , are the lines through the origin with the origin removed. The origin does not really play an essential part in the previous discussion so it can be added back in ...
This familiar equation for a plane is called the general form of the equation of the plane or just the plane equation. [6] Thus for example a regression equation of the form y = d + ax + cz (with b = −1) establishes a best-fit plane in three-dimensional space when there are two explanatory variables.
For example, the circle given by the equation + = has degree 2. The non-singular plane algebraic curves of degree 2 are called conic sections , and their projective completion are all isomorphic to the projective completion of the circle x 2 + y 2 = 1 {\displaystyle x^{2}+y^{2}=1} (that is the projective curve of equation x 2 + y 2 − z 2 = 0 ...
Any second-degree equation which does not reduce to a cylinder, plane, line, or point corresponds to a surface which is called quadric. [ 11 ] As in the case of plane analytic geometry, the method of translation of axes may be used to simplify second-degree equations, thereby making evident the nature of certain quadric surfaces.
Pages in category "Arithmetic problems of plane geometry" The following 13 pages are in this category, out of 13 total. This list may not reflect recent changes .