Double Integral

Type it

Ways to write the Double Integral symbol
UnicodeU+222C
LaTeX\iint
HTML entity∬
Character∬

Meaning

Integrates a function of two variables over a region of the plane. In LaTeX, \iint needs the amsmath package. Compare with Integral and Contour Integral.

How to read it

∬ f dA

is read “the double integral of f d A”.

More Calculus symbols