free-symbols

Partial Differential Symbol

∂ (U+2202) denotes a partial differential used in calculus and differential equations.

U+2202

The symbol ∂ is read as “partial differential.” It’s widely used in calculus to indicate differentiation with respect to one variable while others are held constant. You can copy it directly or use common escape forms in code.

Partial Differential Symbol Meaning

∂ is the partial differential symbol, corresponding to the Unicode code point U+2202 (HTML: ∂). In mathematics and physics notation, it appears in operators like ∂/∂x, where the derivative is taken with respect to one variable (such as x) while treating other variables as independent constants. A common pattern is writing ∂f/∂x for the rate of change of a function with respect to x, or using ∂² for second partial derivatives. It is different from d, which typically denotes a total differential.

Common uses

  • Writing partial derivatives such as ∂f/∂x in calculus and analysis
  • Forming differential operators like ∂/∂t and ∂/∂x for equations of motion
  • Expressing gradient and divergence components in vector calculus
  • Denoting second-order partial derivatives like ∂²f/∂x² in PDEs
  • Labeling variables in mathematical models and technical documentation

Examples

∂ Partial Differential Symbol

  • ∂f/∂x
  • ∂u/∂t = k ∂²u/∂x²
  • ∂²f/∂x² + ∂²f/∂y² = 0
  • Let D = ∂/∂x
  • The term ∂g/∂z appears in the model

Variations

Ready to copy

Technical codes

UnicodeU+2202
HTML Entity∂
HTML Code∂
CSS\2202

FAQ

What does the symbol ∂ mean?

∂ is the partial differential symbol, commonly used to represent partial derivatives like ∂/∂x where only one variable is differentiated.

What is the Unicode code point for ∂?

The Unicode code point for ∂ is U+2202.

How can I paste ∂ in HTML?

Use the HTML entity: ∂.

Is ∂ the same as the differential symbol d?

No. ∂ typically indicates partial differentiation, while d is often used for total differential or differentials in other contexts.