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 Livros Livros 1 - 10 de 35 sobre For example, the locus of a point which moves in such a way that its distance from.... For example, the locus of a point which moves in such a way that its distance from a fixed point is always equal to its distance from a fixed straight line, is a parabola. Elements of analytic geometry - Página 187
de Simon Newcomb - 1885 - 356 páginas
Visualização completa - Sobre este livro ## Geometrical Conics Including Anharmonic Ratio and Projection: With Numerous ...

Charles Taylor - 1863 - 222 páginas
...always equal to the ratio SP : PR. Hence a conic might have been defined as the curve traced out by a point which moves in such a way that its distance from the focus bears always the same ratio to its distance from the directrix, measured parallel to any...
Visualização completa - Sobre este livro ## GEOMETRY OF CONICS

C. TAYLOR, M.A. - 1872
...respects. CHAPTER I. CHORD-PROPERTIES OF THE PARABOLA. DEF. A parabola is the curve described in a plane by a point which moves in such a way that its distance from a certain fixed point, called the fiocus, is always equal to its perpendicular distance from a certain...
Visualização completa - Sobre este livro ## Introduction to quaternions, by P. Kelland and P.G. Tait

Philip Kelland - 1873
...straight lines which do not meet ; find the locus of its centre. CHAPTER VI. THE ELLIPSE. 43. !• IF we define a conic section as "the locus of a point which moves so that its distance from a fixed point bears a constant ratio to its distance from a fixed straight...
Visualização completa - Sobre este livro ## The Parabola, Ellipse, and Hyperbola, Treated Geometrically

Robert William Griffin - 1879 - 178 páginas
...Props, xxix. and xxiv.) CHAPTER II. THE ELLIPSE. DEFINITIONS. AN Ellipse is the curve traced out by a point, which moves in such a way that its distance from a fixed point is to its perpendicular distance from a fixed right line in a constant ratio « : 1 (E being less than...
Visualização completa - Sobre este livro ## The Elementary Geometry of Conics

Charles Taylor - 1880 - 104 páginas
...chapters, as occasion arises.] 1. A CONIC SECTION*, or briefly a Conic, is the curve traced in a plane by a point which moves in such a way that its distance from a given point is in a constant ratio to its distance from a given straight line. The given point is called...
Visualização completa - Sobre este livro ## An elementary treatise on geometrical drawing

John Henry Robson - 1880
...line. Let this cut the line in E. Repeat this process as often as is required. Def.—An ellipse is the locus of a point which moves in such a way that the sum of its distances from two fixed points is constant. This accurate mathematical definition merely...
Visualização completa - Sobre este livro ## Linear Algebra

Hussein Tevfik (Pacha.) - 1882 - 68 páginas
...equation of a sphere. The equation of a Conic Section deduced directly from its definition. 85. We will define a Conic Section as the locus of a point which moves so that its distance from a fixed point bears a constant ratio to its distance from a fixed straight...
Visualização completa - Sobre este livro ## Analytic Geometry

Henry Bayard Phillips - 1915 - 197 páginas
...point P is taken on this line such that PQ = AQ. Find the locus of P as OQ turns about O. 3. A point P moves in such a way that its distance from a fixed point O multiplied by its distance from a fixed straight line LK is constant. Find the locus of P. 4. A segment...
Visualização completa - Sobre este livro ## Winston's Cumulative ... Encyclopedia: A Comprehensive Reference Book, Volume 7

1918
...parallel to a slant side, the section is a parabola. It may also be defined as the curve traced out by a point which moves in such a way that its distance from a fixed point, called the ' focus/ is always equal to its perpendicular distance from a fixed straight i » с с...
Visualização completa - Sobre este livro ## Winston's Cumulative Loose-leaf Encyclopedia: A Comprehensive ..., Volume 7

Charles Morris - 1921
...parallel to a slant side, the section i* a parabola. It may also be defined as the curve traced out by a point which moves in such a way that its distance from a fixed point, called the ' focus, is always equal to its perpendicular distance from a fixed straight line, called...
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