WOLFRAM
|
DEMONSTRATIONS PROJECT
Level Curves
p
1
2
3
4
5
q
1
2
3
4
5
r
1
2
3
a
9
b
3
k
6
a
p
x
+
b
q
y
=
r
k
L
e
t
f
b
e
a
r
e
a
l
-
v
a
l
u
e
d
f
u
n
c
t
i
o
n
o
f
t
w
o
r
e
a
l
v
a
r
i
a
b
l
e
s
a
n
d
l
e
t
c
b
e
a
c
o
n
s
t
a
n
t
.
T
h
e
s
e
t
o
f
a
l
l
p
o
i
n
t
s
(
x
,
y
)
i
n
t
h
e
p
l
a
n
e
s
u
c
h
t
h
a
t
f
(
x
,
y
)
=
c
i
s
c
a
l
l
e
d
a
l
e
v
e
l
c
u
r
v
e
o
f
f
(
w
i
t
h
v
a
l
u
e
c
)
.
