Trapezoidal Rule Calculator

Use this online trapezoidal rule calculator to find the approximate value of integration. Just enter the equation, lower limit, upper limit and the number of step size to get the results. This calculator is also designed to handle lower and upper limits with negative values.

n= ( n>0 )

a=

b=

f(x)=

step size =
x₀ =
x₁ =
x₂ =
...
x_n =
Area ≈

f ( x₀ ) =
f ( x₁ ) =
f ( x₂ ) =
f ( x_n ) =

** f(x)should be written in code
(Math.pow(x,2), Math.PI, 2*x etc)
** The website can't support numbers that are too big
** f(x₃), f(x₄) etc are logged in the console
(right click -> inspect -> console)

Made by Choy Mei Xin (RMM2)
Find me at LinkedIn