Gerhard Miehlich
Graphics by
Paul Bourke
March 2003
Symmetric: (z
2
- c
2
)
2
- 4 a
2
(x
2
+ y
2
) = 0
Asymmetric: (1 - 2 x + z
2
- c
2
)
2
- 4 a
2
(x
2
+ y
2
) = 0
