Quadratic Regression Calculator
Fit y = ax² + bx + c by least squares, with the curve drawn over your data.
Your data
Enter one (x, y) pair per line — e.g. '2, 11'.
Result
y = 1.6429x² + -2.0714x + 1least-squares quadratic fit over n = 6 points
a
1.6429
b
-2.0714
c
1
R²
0.9733