Symbols and notation

Integral sign

The elongated integral sign indicates continuous accumulation, with limits marking the interval for a definite integral and a differential identifying the variable.

Common notation ∫f(x)dx; ∫ₐᵇf(x)dx

In one sentence

What does Integral sign mean?

The elongated integral sign indicates continuous accumulation, with limits marking the interval for a definite integral and a differential identifying the variable.

How it is written

∫f(x)dx; ∫ₐᵇf(x)dx

A compact example

In ∫₀²x dx, 0 and 2 are the limits, x is the integrand and dx identifies the integration variable.

Other names and search terms

∫, integral symbol, integration sign, elongated s.

Clear answers

Questions about Integral sign

What does Integral sign mean in mathematics?

The elongated integral sign indicates continuous accumulation, with limits marking the interval for a definite integral and a differential identifying the variable.

How is Integral sign written?

A common notation is ∫f(x)dx; ∫ₐᵇf(x)dx.

What is an example of Integral sign?

In ∫₀²x dx, 0 and 2 are the limits, x is the integrand and dx identifies the integration variable.