Day 10
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Math 445, Wednesday, 1/26
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| Sponsor |
Today's class is brought to you by the Inversive
Plane. |
| Topics |
Circle
geometry and Inversive Plane. Inversions as congruences. |
| Class Schedule |
- Definition of Inversive Plane
- E-geometry vs I-geometry
- What makes sense in I-geometry: angle, circle, incidence (later cross-ratio)
- What does not make sense: distinction between lines and circles, center
of a circle, diameters.
- Double inversion and pencils.
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| Assignments |
| New |
Reading Assignment
Read notes linked above.
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| Due Today |
Teams: Tell preference for presentation and whether lab
is needed.
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| Ongoing |
Assignment 3 due Friday 1/28
Portfolio
#1 due Wednesday 2/2
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