Example
Before
H2O and CO2
After
H₂O ₐₙd CO₂
Common uses
Chemical formulas like H₂O, CO₂, and C₆H₁₂O₆, and math or science notation such as x₁ and x₂.
Which letters are available
Unicode only includes subscript digits, math signs, and the lowercase letters a, e, h, i, j, k, l, m, n, o, p, r, s, t, u, v, and x. Other letters are left unchanged.