The geometry, by T. S. Davies. Conic sections, by Stephen FenwickJ. Weale, 1853 |
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Σελίδα
... Surface . 181 186 193 205 • 209 Definitions • Parabola Ellipse · Hyperbola CONIC SECTIONS . PROJECTION . Definitions and First Principles Orthographic Projection Exercises on Orthographic Projection · 221 • 223 · 227 • 235 240 244 271 ...
... Surface . 181 186 193 205 • 209 Definitions • Parabola Ellipse · Hyperbola CONIC SECTIONS . PROJECTION . Definitions and First Principles Orthographic Projection Exercises on Orthographic Projection · 221 • 223 · 227 • 235 240 244 271 ...
Σελίδα 139
... surface is equally distant from a point within it . " It thus appears to be immaterial in some cases whether the ... surfaces by means of their genesis . We are not , however , imperatively tied down to this arrangement ; but whatever ...
... surface is equally distant from a point within it . " It thus appears to be immaterial in some cases whether the ... surfaces by means of their genesis . We are not , however , imperatively tied down to this arrangement ; but whatever ...
Σελίδα 140
... surface , indeed ) is the point or line in which that line or plane meets some specified plane . 8. A solid angle ( or more descriptively , a polyhedral angle ) , is formed by three or more planes which meet in a point , and each plane ...
... surface , indeed ) is the point or line in which that line or plane meets some specified plane . 8. A solid angle ( or more descriptively , a polyhedral angle ) , is formed by three or more planes which meet in a point , and each plane ...
Σελίδα 141
... surface . If this surface be cut by two planes parallel to the circle , the inter- cepted portion is a cylinder . These two planes are called the ends or bases of the cylinder ; the original circle the directrix ; the moving line the ...
... surface . If this surface be cut by two planes parallel to the circle , the inter- cepted portion is a cylinder . These two planes are called the ends or bases of the cylinder ; the original circle the directrix ; the moving line the ...
Σελίδα 193
... . The view is only changed from its somewhat simplifying the language of the expo- sition . VOL . II . There is one important principle to be noticed here , VOLUMES OF SOLIDS . 193 Volumes of Solids Spherical Surface.
... . The view is only changed from its somewhat simplifying the language of the expo- sition . VOL . II . There is one important principle to be noticed here , VOLUMES OF SOLIDS . 193 Volumes of Solids Spherical Surface.
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ABC is equal ABCD adjacent angles angle ABC angle BAC axis bisected centre circle ABC circumference coincide cone construction coordinate planes described Descriptive Geometry diameter dicular dihedral angles draw edges ellipse equal angles equiangular equimultiples given line given point given straight line greater hence horizontal hyperbola inclination intersection join less Let ABC Let the plane line BC lines drawn magnitudes meet multiple orthograph parabola parallel planes parallelogram parallelopiped perpen perpendicular perpendicular to MN plane MN plane of projection plane parallel plane PQ prisms profile angles profile plane projecting plane Prop Q. E. D. PROPOSITION ratio rectangle rectangle contained rectilineal figure remaining angle respectively right angles SCHOLIUM segment sides six right sphere spherical angle tangent THEOR trace triangle ABC trihedral vertex Whence Wherefore