Simpson’s Rule Calculator (Free, Step-by-Step)
Use this free Simpson’s rule calculator to approximate a definite integral. Enter the function, the interval, and an even number of subintervals to get the estimate, the step size, the error, and a graph.
How Simpson’s rule works
It fits parabolas through groups of points, weighting endpoints by 1, odd points by 4, and even points by 2, then scales by h/3. n must be even.
Original price was: $109.99.$54.99Current price is: $54.99.
How to use it
- Enter f(x), the interval a and b, and an even n.
- Press Approximate.
Related: the Riemann Sum Calculator and the Integral Calculator.
Frequently asked questions
Why must n be even?
Simpson’s rule pairs subintervals into parabolic arcs, so it needs an even number of them.
Original price was: $109.99.$54.99Current price is: $54.99.
How accurate is it?
Very accurate for smooth functions — it is exact for polynomials up to degree three.
Original price was: $109.99.$54.99Current price is: $54.99.
Does it show the error?
Yes — it compares the estimate to a fine-grid value of the integral.
Original price was: $27.99.$17.99Current price is: $17.99.
Related to This Article
More math articles
- Unlock the Answers: “ASVAB Math for Beginners” Complete Solution Reference
- The Best Grade 5 Math Book for New York Students
- The Best Grade 6 ELA Practice Tests for Florida Students
- Finding Derivatives Made Easy! Derivative of A Chain of Functions
- Fitting a Line to Data: Complete Guide with Video and Examples
- Can You Cheat on the ALEKS Test?
- Overview of the ISEE Middle-Level Mathematics Test
- Free Texas Grade 2 Math Worksheets
- The Best Grade 4 Math Book for New York Students
- 8th Grade OST Math FREE Sample Practice Questions
What people say about "Simpson’s Rule Calculator (Free, Step-by-Step) - Effortless Math: We Help Students Learn to LOVE Mathematics"?
No one replied yet.