HTML RESULT

{echo 1 + 2 * 3}
7

{echo (1 + 2) * 3}
9

{echo 10 - 2 + 3}
11

{echo 12 / 2 * 3}
18

{echo 2 ** 3 ** 2}
512

{echo -3 ** 2}
-9

{echo (-3) ** 2}
9

{echo 2 ** -1}
0.5

HTML	RESULT
`{echo 1 + 2 * 3}`	`7`
`{echo (1 + 2) * 3}`	`9`
`{echo 10 - 2 + 3}`	`11`
`{echo 12 / 2 * 3}`	`18`
`{echo 2 3 2}`	`512`
`{echo -3 ** 2}`	`-9`
`{echo (-3) ** 2}`	`9`
`{echo 2 ** -1}`	`0.5`