WOLFRAM
|
DEMONSTRATIONS PROJECT
Ellipsoid
l
e
n
g
t
h
s
o
f
s
e
m
i
-
a
x
e
s
a
2
b
2
c
1
A
n
e
l
l
i
p
s
o
i
d
i
s
a
q
u
a
d
r
a
t
i
c
s
u
r
f
a
c
e
g
i
v
e
n
b
y
2
x
2
a
+
2
y
2
b
+
2
z
2
c
=
1
.
