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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §3.2 Maximum and Minimum Problems, #63 · Calculus · Optimization

Draw the line … passing near …, …, and

Draw the line $y = m x$ passing near $(2, 3)$ , $(1, 1)$ , and $(- 1, 1)$ . For a least squares fit, minimize
$(3 - 2 m)^{2} + (1 - m)^{2} + (1 + m)^{2} .$

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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §3.2 Maximum and Minimum Problems, #63

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