x2.

x2xz.

x2.

x2 3^

x2 32

5

xz.

xxyz.

zz.

~/Library/MultiMarkdown

test

10

x^y

x~y

x2 3~

x2 32

H2O

15

CH3CH2CH2CH3

CH3CH2CH2CH~3

\pi^2

\pi^2^

CH~4

20

CH~4~

238U

Ca2+

tpx

23Na1+

25

Na1+

Na1+

Na^+

Na+