WOLFRAM
|
DEMONSTRATIONS PROJECT
P
e
n
d
u
l
u
m
w
i
t
h
a
n
O
s
c
i
l
l
a
t
i
n
g
S
u
p
p
o
r
t
a
n
g
u
l
a
r
v
e
l
o
c
i
t
y
π
2
o
s
c
i
l
l
a
t
i
o
n
a
m
p
l
i
t
u
d
e
1
θ
0
π
4
ω
0
0
g
r
a
v
i
t
y
1
0
r
o
d
l
e
n
g
t
h
2
a
n
i
m
a
t
e
T
h
i
s
D
e
m
o
n
s
t
r
a
t
i
o
n
u
s
e
s
L
a
g
r
a
n
g
i
a
n
m
e
c
h
a
n
i
c
s
t
o
s
i
m
u
l
a
t
e
a
p
e
n
d
u
l
u
m
w
i
t
h
a
n
o
s
c
i
l
l
a
t
i
n
g
s
u
p
p
o
r
t
.
