Integral & Calculus Symbols (∫ ∂ ∇ ∑) — Copy & Paste
Calculus symbols used in engineering analysis, physics, and applied mathematics. Copy any symbol instantly with its Unicode, HTML and LaTeX reference.
Symbols — copy & reference
∫
Integral
Denotes integration over a function. Fundamental in calculus, physics and engineering.
∬
Double integral
Integration over a two-dimensional region or surface.
∭
Triple integral
Integration over a three-dimensional volume.
∮
Contour integral
Integration along a closed curve or loop. Used in complex analysis and electromagnetism.
∑
Summation
Sum of a sequence of terms. One of the most used symbols in all of mathematics and engineering.
∏
Product
Product of a sequence of terms. Analogous to Σ but for multiplication.
∂
Partial derivative
Denotes differentiation with respect to one variable while holding others constant.
∇
Nabla / Del
Vector differential operator. Used for gradient, divergence and curl in vector calculus.
∆
Delta (increment)
Uppercase delta used to denote a finite change or difference in a variable.
′
Prime (derivative)
Denotes the derivative of a function: f′(x). Also used for feet and arcminutes.
″
Double prime
Denotes the second derivative f″(x). Also used for inches and arcseconds.
How to insert in applications
Windows
Best option: copy from this page.
Or Win + . to open emoji & symbols panel.
Or Win + . to open emoji & symbols panel.
macOS
⌃⌘Space → Character Viewer → search by name
Microsoft Word
Insert → Symbol → More Symbols → find by Unicode
Google Docs
Insert → Special characters → search by name or draw
LaTeX
Use command in math mode: $ … $
HTML
Use HTML entity or decimal code directly in markup