These methods are taken from Lab 6 and from the reading in Ogilvy and also from Sved.
Figure 1: Compass only! |
Figure 2. Uses a line instead of one circle. |
Figure 3: Uses tangent PT. Was PA tangent in figures 1 and 2? |
Figure 4: This construction was invented by a 444-5 student a few years ago. |
Figure 5: This figure uses stereographic projection to connect inversion with reflection in the equatorial circle. |
Figure 6. This is a more efficient construction that uses the same geometry as Figure 5. |