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.
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.
Where this fits
When should you learn Integral sign?
The first encounter is not the final level. Many ideas begin visually, become computational in high school and become formal in college.
- 1Pre-high schoolPrepare foundations
- 2High schoolUsually introduced
- 3CollegeGreater depth
- 4AdvancedGreater depth
- Mathematical notation
- Algebra
- Reading equations
- Fluent formula reading
- Advanced mathematics
Recognising notation reduces friction when formulas become denser.
Open the Zero-to-QM pathClear 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.