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 Quadric Surfaces
 
 
 |  | Quadric Surfaces 
 Preamble.
 
 Chapter 1.    Introduction
 
 
 
| 1.1 | Quadric Surfaces |  | 1.2 | Direction Cosines |  | 1.3 | Rotation of Coordinate Axes |  
 Chapter 2.    Planes and Straight Lines
 
 
 
| 2.1 | Introduction |  | 2.2 | The Equation to a Plane |  | 2.3 | Distance from the Origin to a Plane |  | 2.4 | Distance from a Arbitrary Point to a Plane |  | 2.5 | Two Parallel Planes |  | 2.6 | Two Planes, not necessarily Parallel |  | 2.7 | Three Planes |  | 2.8 | Straight Lines |  | 2.9 | Finding a Meteorite |  | 2.10 | The Widmanstätten Pattern |  | 2.11 | An Exploding Meteoroid |  
 Chapter 3.    Ellipsoids and Hyperboloids (Central Quadrics)
 
 
 
| 3.1 | Ellipsoid |  | 3.2 | Hyperboloid of One Sheet |  | 3.3 | Hyperboloid of Two Sheets |  
 Chapter 4.    Paraboloids
 
 
 
| 4.1 | Circular and Elliptic Paraboloids |  | 4.2 | Hyperbolic Paraboloid |  
 Chapter 5.    General Quadratic Equation, Part I. Central Quadrics
 
 
 
| 5.1 | Introduction |  | 5.2 | Translation of Coordinate Axes |  | 5.3 | Rotation of Coordinate Axes. Ellipsoids and Hyperboloids |  | 5.4 | Cones. General Homogeneous Quadratic Equation in Three Variables |  | 5.A | (Appendix) Solution of the Equations |  
 Chapter 6.    General Quadratic Equation, Part II. Non-central Surfaces. Planes
 
 
 
| 6.1 | Introduction |  | 6.2 | Two Planes |  
 Chapter 7.    General Quadratic Equation, Part III. Non-central Surfaces. Paraboloids
 
 
 
| 7.1 | An Elliptic Paraboloid |  | 7.2 | A Hyperbolic Paraboloid |  | 7.A | (Appendix) Solution of the Equations |  
 Chapter 8.    General Quadratic Equation, Part IV. Cylinders and Other Possibilities
 
 
 
| 8.1 | Cylinders |  | 8.2 | A Straight Line |  | 8.3 | Nothing |  
 Chapter 9.    Bounds of a Quadric Surface
 
 
 
| 9.1 | An Easy Ellipsoid |  | 9.2 | Three More Difficult Examples |  | 9.3 | Bounds of a Paraboloid |  
 
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