powered by
$$
x
$$
y
$$
a
2
$$
a
b
$$
7
$$
8
$$
9
$$
÷
functions
$$
(
$$
)
$$
<
$$
>
$$
4
$$
5
$$
6
$$
×
$$
|
a
|
$$
,
$$
≤
$$
≥
$$
1
$$
2
$$
3
$$
−
ABC
$$
$$
π
$$
0
$$
.
$$
=
$$
+
Example 1
Example 2
Example 3
Example 4
Example 5
Example 6
Example 7
Example 8
Example 9
Example 10
Example 11
Example 12