27.9.4 Parabolas in space
See Section
26.11.3
for parabolas in the plane.
The
parabola
command creates parabolas in space.
parabola
takes three arguments:
A
,
B
,
C
three non-collinear points.
parabola(
A
,
B
,
C
)
returns and draws the parabola in plane
ABC
with focus
A
and vertex
B
.
Example
parabola
(
point
(0,0,0),
point
(-1,0,0),
point
(1,1,1))
