U+2202 "∂" Partial Differential Unicode Character
Unicode Version 17.0
∂
U+2202 "∂" Partial Differential is a mathematical symbol known as the partial derivative operator, often called "del" or "curly d." It is used in calculus and multivariable analysis to denote the derivative of a function with respect to one of several variables while the others are held constant. This symbol, which resembles a stylized lowercase delta with a rounded top, is distinct from the Greek letter delta or the Latin letter d. It was introduced by the mathematician Adrien-Marie Legendre and popularized by Carl Gustav Jacob Jacobi. In Unicode, it occupies the code point U+2202 within the Mathematical Operators block.
General Properties
| Code Point | U+2202 |
| Version Added | 1.1 |
| Name | Partial Differential |
| Block | Mathematical Operators |
| General Category | Math Symbol |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Other Neutral |
| Mirrored | Yes |
Encodings
| HTML Decimal Encoding | ∂ |
| HTML Hex Encoding | ∂ |
| UTF-8 Encoding | 0xE2 0x88 0x82 |
| UTF-16 Encoding | 0x2202 |
| UTF-32 Encoding | 0x00002202 |
| C/C++/Java Escape | \u2202 |