Partial Derivative Symbol ∂

Partial Derivative Symbol is the notation page for ∂, encoded as U+2202 (PARTIAL DIFFERENTIAL). ∂ is U+2202 PARTIAL DIFFERENTIAL. It marks differentiation with respect to one variable while other variables are held fixed or treated separately. Useful checks are ∂f/∂x, ∂²f/∂x², ∂z/∂t, and ∂u/∂x + ∂u/∂y. These examples keep operands, grouping, and the symbol’s mathematical role visible. The key distinction is contextual. Labels and surrounding notation decide how readers should interpret the form. Three checks catch most errors: typing lowercase d instead of ∂, confusing ∂ with delta δ, and dropping the variable after ∂. For Partial Derivative Symbol, confirm that the pasted text still contains ∂ and has not been replaced by a visually similar form. The page’s reviewed style guidance is: use ∂ for partial derivatives and d for ordinary derivatives when that distinction matters, keep the variable of differentiation in the denominator, use equation markup for stacked fractions, and define alternate uses of ∂ explicitly. The encoding references are ∂ in decimal HTML, ∂ in hexadecimal HTML, and 2202 for CSS. Verify the complete sequence after copy and paste. A useful scope question is “What is the difference between ∂ and d?” The reviewed answer is: ∂ commonly marks a partial derivative; d commonly marks an ordinary or total differential. On Windows, use Microsoft Word, type 2202 and press Alt+X. For the partial derivative symbol entry, in other Windows apps, use Character Map or copy ∂ from this page. On macOS, open Character Viewer with Control+Command+Space and search for “partial differential,” or copy ∂. Before publishing, compare the pasted result with U+2202, keep a readable label near unfamiliar glyphs, and confirm that the surrounding sentence still expresses the intended partial derivative symbol.