Tabulated Numerical Integration Calculator
Estimate signed area under supplied samples using the composite trapezoidal rule.
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How to use Tabulated Numerical Integration Calculator
Add each interval width multiplied by the mean of its endpoint heights. Inputs are samples, so no user expression is executed.
- Enter increasing x samples, matching y samples.
- Check the model, units, and supported limits before calculating.
- Run the tool, inspect the result, then copy or download it.
Good to know
- 2–1000 paired samples with strictly increasing x. The method is exact for piecewise-linear data, not a guarantee about an unsampled curve.
- Runs locally. Numeric inputs are bounded; floating-point output is approximate and rounded to 12 significant digits. Unsupported or non-finite calculations produce an error.
Common questions
How does Tabulated Numerical Integration Calculator calculate its result?
Add each interval width multiplied by the mean of its endpoint heights. Inputs are samples, so no user expression is executed.
What assumptions and boundaries apply?
2–1000 paired samples with strictly increasing x. The method is exact for piecewise-linear data, not a guarantee about an unsampled curve.
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