Useful Unicode Characters
Here are a list of Unicode characters I find useful to represent mathematical expressions in HTML. To enable these to show up in a regular web page make sure the page is using Unicode by putting

in the header section.

Then, just copy/paste the characters you need from below:

Superscript and subscript
⁰ ¹ ² ³ ⁴ ⁵ ⁶ ⁷ ⁸ ⁹ ⁺ ⁻ ⁼ ⁽ ⁾ ⁿ ₀ ₁ ₂ ₃ ₄ ₅ ₆ ₇ ₈ ₉

Greek characters
Α Β Γ Δ Ε Ζ Η Θ Ι Κ Λ Μ Ν Ξ Ο Π Σ Τ Υ Φ Χ Ψ Ω

α β γ δ ε ζ η θ ι κ λ μ ν ξ ο π ρ ς σ τ υ φ ω

Zodiac and some planets
☿ ♀ ♁ ♂ ♃ ♄ ♅ ♆ ♇ ♈ ♉ ♊ ♋ ♌ ♍ ♎ ♏ ♐ ♑ ♒ ♓

Math
∫ ∬ ∭ ∮ ∯ ∰ ∱ ∲ ∳ ∴ ∵ ∷ ≅ ∇ ∆ ⊂ ⊃ ⊗ ± ∂ ∏ √ ∞ ≈ ≠ ≤ ≥

Misc.
€ ¢ £ ¥ § © ® ° ± µ ¶ † ‡ ‰ № ℅ ™ ☺

Use in combination with:

<u>underline</u> – underline

<span style=’text-decoration:overline;’> – overline

A_subscript – A_subscript

A^superscript – A^superscript

You can create decent looking mathematical expressions.