The numerical analyst
toolbox.
Evaluate expressions, investigate convergence and fit private point data.
8 useful places to start.
Numerical estimates state tolerances and diagnostics. Compare residuals and step sensitivity before trusting a result.
Adaptive numerical integration
Estimate a definite integral with an evaluation count and error estimate.
Numerical derivative workspace
Estimate first and second derivatives and compare sensitivity to the chosen step.
Bracketed root finder
Find one root in a sign-changing interval and inspect the final residual.
Function value table
Sample an expression at evenly spaced X positions and export the full table.
Polynomial interpolation workspace
Interpolate up to 20 points and export a sampled polynomial curve.
Natural cubic spline workspace
Interpolate an ordered point set with natural endpoint conditions and export samples.
Polynomial least-squares fit
Fit a low-degree curve to point data and inspect fitted values and residuals.
Finite difference table
Build successive forward differences from equally spaced observations.
A few things you
can tick off.
- Estimate an integral with diagnostics
- Compare interpolation and fitted curves
- Inspect root and derivative sensitivity