Introduction |
Plane curves / 1: |
Regular plane curves and their evolutes / 1.0: |
Curvature / 1.2: |
Parallels / 1.3: |
Equivalent parametric curves / 1.4: |
Unit-speed curves / 1.5: |
Unit-angular-velocity curves / 1.6: |
Rhamphoid cusps / 1.7: |
The determination of circular points / 1.8: |
The four-vertex theorem / 1.9: |
Exercises |
Some elementary geometry / 2: |
Some linear facts / 2.0: |
Some bilinear facts / 2.2: |
Some projective facts / 2.3: |
Projective curves / 2.4: |
Spaces of polynomials / 2.5: |
Inversion and stereographic projection / 2.6: |
Plane kinematics / 3: |
Instantaneous rotations and translations / 3.0: |
The motion of a plane at t = 0 / 3.2: |
The inflection circle and Ball point / 3.3: |
The cubic of stationary curvature / 3.4: |
Burmester points / 3.5: |
Rolling wheels / 3.6: |
Polodes / 3.7: |
Caustics / 3.8: |
The derivatives of a map / 4: |
The first derivative and C[superscript 1] submanifolds / 4.0: |
Higher derivatives and C[superscript k] submanifolds / 4.2: |
The Faa de Bruno formula / 4.3: |
Curves on the unit sphere / 5: |
Geodesic curvature / 5.0: |
Spherical kinematics / 5.2: |
Space curves / 6: |
The focal surface and space evolute / 6.0: |
The Serret--Frenet equations / 6.3: |
Close up views / 6.4: |
Historical note / 6.6: |
k-times linear forms / 7: |
Quadratic forms on R[superscript 2] / 7.0: |
Cubic forms on R[superscript 2] / 7.3: |
Use of complex numbers / 7.4: |
Probes / 8: |
Probes of smooth map-germs / 8.0: |
Probing a map-germ V: R[superscript 2]--R / 8.2: |
Optional reading / 8.3: |
Contact / 9: |
Contact equivalence / 9.0: |
K-equivalence / 9.2: |
Applications / 9.3: |
Surfaces in R[superscript 3] / 10: |
Euler's formula / 10.0: |
The sophisticated approach / 10.2: |
Lines of curvature / 10.3: |
Focal curves of curvature / 10.4: |
Ridges and ribs / 10.5: |
The normal bundle of a surface / 11.0: |
Isolated umbilics / 11.2: |
The normal focal surface / 11.3: |
A classification of focal points / 11.4: |
More on ridges and ribs / 11.6: |
Umbilics / 12: |
Curves through umbilics / 12.0: |
Classifications of umbilics / 12.2: |
The main classification / 12.3: |
Darboux's classification / 12.4: |
Index / 12.5: |
Straining a surface / 12.6: |
The birth of umbilics / 12.7: |
The parabolic line / 13: |
Gaussian curvature / 13.0: |
Koenderink's theorems / 13.2: |
Subparabolic lines / 13.4: |
Uses for inversion / 13.5: |
Involutes of geodesic foliations / 14: |
Cuspidal edges / 14.0: |
The involutes of a geodesic foliation / 14.2: |
Coxeter groups / 14.3: |
The circles of a surface / 15: |
The theorems of Euler and Meusnier / 15.0: |
Osculating circles / 15.2: |
Contours and umbilical hill-tops / 15.3: |
Higher order osculating circles / 15.4: |
Examples of surfaces / 16: |
Tubes / 16.0: |
Ellipsoids / 16.2: |
Symmetrical singularities / 16.3: |
Bumpy spheres / 16.4: |
The minimal monkey-saddle / 16.5: |
Flexcords of surfaces / 17: |
Umbilics of quadrics / 17.0: |
Characterisations of flexcords / 17.2: |
Birth of umbilics / 17.3: |
Duality / 17.4: |
Curves in S[superscript 2] / 18.0: |
Surfaces in S[superscript 3] / 18.2: |
Curves in S[superscript 3] / 18.3: |
Further reading |
References |
Introduction |
Plane curves / 1: |
Regular plane curves and their evolutes / 1.0: |
Curvature / 1.2: |
Parallels / 1.3: |
Equivalent parametric curves / 1.4: |