Mathematical formulas can be written in HTML without installing special fonts, MathML, or inserting images. This article shows how this can be done.
| Symbol | Entity | Description |
|---|---|---|
| ¬ | ¬ | not sign |
| ¯ | ¯ | macron, overline |
| ° | ° | degree sign |
| ± | ± | plus-minus sign |
| µ | µ | micro sign |
| · | · | middle dot, centered period |
| × | × | multiplication sign |
| ÷ | ÷ | division sign |
| ƒ | ƒ | f with hook, script f |
| - | monospaced hyphen | |
| − | − | minus sign |
| – | – | en dash |
| — | — | em dash |
| † | † | dagger |
| ‡ | ‡ | double dagger |
| • | • | bullet |
| … | … | ellipsis |
| ′ | ′ | prime, minute |
| ″ | ″ | double prime, second |
| ⁄ | ⁄ | fraction slash |
| Ω | Ω | ohm sign |
| ← | ← | leftwards arrow |
| ↑ | ↑ | upwards arrow |
| → | → | rightwards arrow |
| ↓ | ↓ | downwards arrow |
| ↔ | ↔ | left right arrow |
| ↕ | ↕ | up down arrow |
| ∂ | ∂ | partial differential |
| ∆ | ∆ | increment, difference |
| ∏ | ∏ | product |
| ∑ | ∑ | summation, sum |
| √ | √ | square root, radical |
| ∞ | ∞ | infinity |
| ∩ | ∩ | intersection |
| ∫ | ∫ | integral |
| ⌠ | ⌠ | top half integral |
| ⌡ | ⌡ | bottom half integral |
| ≈ | ≈ | almost equal to, approximately equal to |
| ≠ | ≠ | not equal to |
| ≡ | ≡ | identical to |
| ≤ | ≤ | less than or equal to |
| ≥ | ≥ | greater than or equal to |
√(a2 + b2)
| lim | an |
| n→∞ |
∞
∑ an
n = 0
| ∞ ∑ n = 0 |
an |
{ sum from n = 0 to infinity } a_n
| ∆u = Δu = | n ∑ |
∂2u/∂xi2 |
Laplacian of u = Delta u = { sum from i = 1 to n } d^2u / dx_i^2
| ∞ ∏ n = 0 |
an |
{ product from n = 0 to infinity } a_n
| b ∫ a |
f(x) dx |
{ integral from a to b } f(x) dx
| +∞ ∫ −∞ |
exp(−x2) dx | = √π |
{ integral from -infinity to +infinity } exp(-x^2) dx = square root of pi