Calculation
Integral Calculator
Approximate a definite integral between two bounds and plot the function.
Approximate definite integral
8.28318530724
Simpson's method with 400 ranges.
f(x) = sin(x)+2
The tool calculates a definite integral numerically. If the function has discontinuities or singularities within the interval, you may need to split the interval.
Frequently asked questions
What method does it use?
Uses the composite Simpson’s rule, suitable for many smooth functions.
Does it calculate indefinite integrals?
No. It calculates definite integrals between two numerical bounds.
Can I change the accuracy?
Yes. You can increase the number of intervals to 10,000.