RegressionTool©: Linear and Nonlinear Regression Analysis

Based on the common and standard Levenberg–Marquardt algorithm

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1. Copy and Paste

X Data
Y Data
Data Points: 0
No data plotted

2. Function Definition

Example: c1*x^2 + c2*x + c3
Format: c1>0, c2<10, c3>=0, etc.
Function Status:
Ready

3. Initial Parameter Values

For complex nonlinear functions, better initial guesses yield better results.

3. Data with Initial Function Fit