445 Home Page

1. Week 01/06-10

2. Week 01/13-17

3. Week 01/20-24

4. Week 01/27-31

5. Week 02/03-07

6. Week 02/10-14

7. Week 02/17-21

8. Week 02/24-28

9. Week 03/03-07

10. Week 03/10-14

11. Week 03/17-21

Monday 2/24 445

• Applications of inversion - Steiner Chains and Problem of Apollonius. Read Ogilvy, Chapter 4.
• Handout - Steiner figures
• Handout - Relation of Tangent circles to Orthogonal Circles

Wednesday 2/26 445

• Assignment 8 due today.
• Poincaré Disk Model
  • Definition and Basics
  • Read Sved, Chapter 5 (we will do 4 afterwards)

Wednesday 2/26 487

• Lab 8 - Poincaré Model - read Basics above.
• Assignment 9A for Friday (this may be checked in class). Reading about the defect of a triangle and its first consequences.
• Construction of these P-objects will be part of Assignment 9
  • Perpendicular to P-line m through P-point A (A on m or A not on A).
  • P-perpendicular bisector of AB
  • Common perpendicular to 2 ultraparallels
  • P-circle with given P-center A through B.
  • P-circle with P-diameter AB.
  • P-Circumcenter of a P-triangle ABC

Friday 2/28

• Assignment 9A Due
• Hyperbolic Non-Euclidean Geometry
  • Read Sved Chapter 5
• Assignment 9B due Wed 3/5