Online Integral Calculator
Approximate definite integrals from a to b. Enter f(x) and the limits.
How it works
We approximate the definite integral ∫ₐᵇ f(x) dx using the trapezoidal rule: the area under the curve is approximated by many small trapezoids. Enter f(x) and the limits a and b. Supported: x, +, -, *, /, ^, sin(x), cos(x), exp(x), log(x), sqrt(x).
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