integral trapezoidal rule calculator

Numerical Integration Tool

Calculation Mode

Function f(x) Data Points

Function f(x)

Use x with +, -, *, /, ^ and functions like sin(x), cos(x), sqrt(x), exp(x), log(x).

Lower Limit a

Upper Limit b

Subintervals n

Higher n usually improves accuracy, but very high values can slow older devices.

Show values table Show graph

Data Points

Enter one x,y pair per line. Commas, spaces, or tabs are accepted.

Sort x values ascending Show point table

Live Result

Ready

Enter your function or data points to calculate the approximate integral.

Step Size-

Intervals-

FormulaTn