string water = "H" + "\x2082" + "O"; // You can split the string up if you want. string ammonia = "NH\x2083"; // Or not split it. string energy = "e=mc\x00B2"; // Most well-kNown,poorly understood equation. string PythagoreanTheorem = "a\x00B2+b\x00B2=c\x00B2"; \\ Also well-kNown.
3. Character reference.
Superscript:
0 : U+2070
1 : U+00B9
2 : U+00B2
3 : U+00B3
4-9 : U+2074-2079
+ : U+207A
- : U+207B
= : U+207C
( : U+207D
) : U+207E
n : U+207F
Subscript
0-9 : U+2080-2089
+ : U+208A
-: U+208B
=: U+208C
(: U+208D
): U+208E
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