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Field notes.

Ideas, experiments, and the occasional rabbit hole.
A running log of what I’m building and learning.

01 ENTRIES / ALWAYS LEARNING

1 post tagged OptimizationClear filter ↗

Linear regression diagram plotting three pizza prices, the fitted line y equals 1.5x minus 2, and an extrapolated 20-inch price of 28 dollars.

Oct 13, 2026 16 min read

Understanding Linear Regression: Fitting a Line, Measuring Error, and Making Predictions

Learn how linear regression fits data, with worked pizza-price and multiple-regression examples, an interactive fitting graph, error metrics, and a gradient descent calculation.

Machine LearningLinear RegressionSupervised LearningOptimization