GlyphIndexTwo-variable function
f(x, y) = x² + y; ∂f/∂x = 2x
Here y is held fixed while differentiating with respect to x.
Partial-derivative sign
The partial-derivative sign ∂ shows differentiation with respect to one variable while others are held fixed, as in ∂f/∂x.
PARTIAL DIFFERENTIAL
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Character details
♡→✦
3 code pointsMeaning and context
The partial-derivative sign ∂ shows differentiation with respect to one variable while others are held fixed, as in ∂f/∂x.
How to use it
Show both the function and the variable. In a plain-text ratio, group a longer numerator or denominator to preserve the intended derivative.
Examples
Other variable
For f(x, y) = x² + y, ∂f/∂y = 1.
Changing the denominator changes which variable is differentiated.
Similar shapes, different characters
Latin small d
U+0064Ordinary differential notation often uses d, a different character.
Greek small delta
U+03B4Delta is a letter and has other defined uses.
DetailsSources and method
- Unicode 18.0.0 character database — Pinned standard character identities and properties; the application computes UTF encodings from the original text.
- Unicode character code charts — Reference glyphs are not a guarantee of the appearance in a user’s font.