**A Bird in Flight** are bird-like geometric patterns that were introduced by mathematical artist Hamid Naderi Yeganeh. Yeganeh has created these figures by combing through tens of thousands of computer-generated images. They are defined by trigonometric functions. An example of such patterns is a composed of 500 line segments where for each
i
=
1
,
2
,
3
,
…
,
500
the endpoints of the
i
-th line segment are:

(
3
2
(
sin
(
2
π
i
500
+
π
3
)
)
7
,
1
4
(
cos
(
6
π
i
500
)
)
2
)
and

(
1
5
sin
(
6
π
i
500
+
π
5
)
,
−
2
3
(
sin
(
2
π
i
500
−
π
3
)
)
2
)
.