U+2207 "∇" Nabla Unicode Character
Unicode Version 17.0
∇
U+2207 "∇" Nabla is a mathematical symbol that resembles an upside-down capital Greek letter delta and is primarily used in vector calculus to represent the del or nabla operator. This operator denotes a vector of partial derivatives and is fundamental in expressing key operations such as gradient, divergence, and curl. For instance, when applied to a scalar field, ∇f yields the gradient vector indicating the direction of greatest increase, while the dot product ∇·F gives the divergence of a vector field, and the cross product ∇×F defines its curl. The symbol's name comes from the Greek word for a harp, which its shape is said to resemble, and it was introduced by the mathematician William Rowan Hamilton in the 19th century.
General Properties
| Code Point | U+2207 |
| Version Added | 1.1 |
| Name | Nabla |
| Block | Mathematical Operators |
| General Category | Math Symbol |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Other Neutral |
Encodings
| HTML Decimal Encoding | ∇ |
| HTML Hex Encoding | ∇ |
| UTF-8 Encoding | 0xE2 0x88 0x87 |
| UTF-16 Encoding | 0x2207 |
| UTF-32 Encoding | 0x00002207 |
| C/C++/Java Escape | \u2207 |