WOLFRAM
|
DEMONSTRATIONS PROJECT
Banchoff's Klein Bottle
p
a
r
a
m
e
t
e
r
s
a
1
2
3
4
5
6
7
8
9
1
0
b
1
2
3
4
5
c
1
2
3
4
5
T
h
i
s
D
e
m
o
n
s
t
r
a
t
i
o
n
s
h
o
w
'
s
B
a
n
c
h
o
f
f
'
s
K
l
e
i
n
b
o
t
t
l
e
(
o
r
K
l
e
i
n
c
y
c
l
o
i
d
)
,
w
h
i
c
h
i
s
b
a
s
e
d
o
n
t
h
e
M
ö
b
i
u
s
b
a
n
d
,
a
s
u
r
f
a
c
e
w
i
t
h
o
n
l
y
o
n
e
e
d
g
e
.