Professor and research tools

Research Calculator

Use research-focused mathematical tools for exact rational arithmetic, measurement uncertainty, dimensional quantities, inferential statistics and scientific constants.

Open Research Mode

What this tool includes

  • Exact BigInt rational arithmetic for supported operations
  • Measurement uncertainty propagation with correlation support
  • One-sample Student-t inference and confidence intervals
  • Linear regression diagnostics, chi-square goodness-of-fit and scientific constants

Common uses

  • University research and laboratory calculations
  • Statistical inference for small datasets
  • Checking uncertainty propagation
  • High-precision rational verification

Examples you can try

  • One-sample Student-t inference
  • Linear regression with R² and slope confidence interval
  • Chi-square goodness-of-fit
  • Measurement uncertainty propagation

Frequently asked questions

Does Research Mode support hypothesis tests?
It includes one-sample Student-t inference and chi-square goodness-of-fit workflows.
Can it propagate measurement uncertainty?
Yes. It supports standard uncertainty through common arithmetic operations and selected functions.
Is all arithmetic arbitrary precision?
Exact rational operations use BigInt. General transcendental and numerical calculations use IEEE-754 double precision unless stated otherwise.

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