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An online calculator for approximating a definite integral using Simpson's (parabolic) 1/3 rule, with steps shown. Related calculators: Simpson's Rule Calculator for a Table, Simpson's 3/8 Rule Calculator for a Function
Simpson's rule for definite integrals: Enter a function f (x), use the a and b sliders to choose the limits of integration, and use the n slider to increase the number of subintervals. (Note n must be even.) to save your graphs! Explore math with our beautiful, free online graphing calculator.
Free Simpson's Rule calculator - approximate the area of a curve using Simpson's rule step-by-step
Simpson's Rule Calculator for a Function. An idea of the Simpson's rule is in following: approximate curve by parabola and then find area of parabola (it is easy to do because we know antiderivative of quadratic function).
Simpson's Rule is a method for approximating a definite integral (finding the area under a curve) by matching quadratics to the curve along subintervals and summing all of the subintervals' individual areas.
This simpson’s rule calculator approximates the definite integral by determining the area under a parabola with the help of quadratic functions.
Use Simpson's Rule to find the approximate value of the integral: from x = to x =, with interval width equal to
