A figure with an image
Figure
1
shows
sin
x
cos
y
\sin x \cos y
sin
x
cos
y
on
[
0
,
2
π
]
2
[0, 2\pi ]^2
[
0
,
2
π
]
2
as colour bands. The image,
plot.png
, is a file in this folder: the preview reads it from there.
Figure 1:
The function
sin
x
cos
y
\sin x \cos y
sin
x
cos
y
: blue below zero, red above.
As Figure
1
shows, the zero set is a grid of lines.