Definite Integral Calculator
Numerically compute the definite integral of f(x) from a to b using adaptive Simpson's rule.
How to use the Definite Integral Calculator
- Enter or select: f(x), Lower limit a, Upper limit b.
- The results (β« f(x) dx, Average value of f) are calculated instantly as you type.
- Use βCopy linkβ to share the calculation with the same input values.
Formula
- β«βα΅ f(x) dx
- Adaptive Simpson: S = h/6 Β· (f(a) + 4f(m) + f(b))