WOLFRAM
|
DEMONSTRATIONS PROJECT
sin(t)=cos(pi/2-t)
s
h
i
f
t
α
0
h
o
r
i
z
o
n
t
a
l
z
o
o
m
2
T
h
e
i
d
e
n
t
i
t
y
s
i
n
(
t
)
=
c
o
s
(
π
/
2
-
t
)
i
s
e
a
s
i
l
y
p
r
o
v
e
d
b
y
f
o
r
m
i
n
g
a
r
e
c
t
a
n
g
l
e
u
s
i
n
g
t
w
o
i
d
e
n
t
i
c
a
l
r
i
g
h
t
t
r
i
a
n
g
l
e
s
.
T
h
i
s
D
e
m
o
n
s
t
r
a
t
i
o
n
c
o
m
p
a
r
e
s
t
h
e
c
u
r
v
e
s
y
=
s
i
n
(
t
)
a
n
d
y
=
c
o
s
(
α
-
t
)
.
T
h
e
c
u
r
v
e
s
a
l
i
g
n
w
h
e
n
α
=
π
/
2
.
