Contour Integral in LaTeX

The LaTeX command for contour integral (∮) is \oint — line integral over closed curve.

\oint

Calculus & Analysis · Unicode ∮ (U+222E) · no package needed

How to type Contour Integral

Write \oint inside math mode — that is, between $…$ for inline math or in a \[ … \] / equation block for display math. It is part of core LaTeX math, so no extra package is required.

Example

$\oint f(x)$

\oint f(x)

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Related Calculus & Analysis symbols

\int\iint\iiint\iiiint\sum\prod\coprod\partial\nabla\infty\lim\limsup\liminf\sup

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FAQ

How do you write contour integral (∮) in LaTeX?

Use \oint in math mode — it needs no extra package. For example, $\oint f(x)$.

Which package provides \oint?

None — \oint is built into LaTeX's math mode, so no extra package is required.

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