Quadratic Regression Calculator
Fit y = ax² + bx + c via the normal equations (3×3 Gaussian elimination).
About this tool
Quadratic Regression Calculator is a single-purpose utility on instant.tw, a free toolbox of calculators, converters, generators, and quick lookups. Everything works in your browser — nothing is uploaded, nothing is stored on a server unless explicitly noted.
Category: Math — Advanced. Browse more Math — Advanced tools.