Figure 1. The exact heat source f as a spline of order one and two.
Figure 2. The exact data, noisy data and the local polynomial estimator for σ = 0.12.
Figure 3. Estimation of the exact (–) heat source f for σ = 0.12 (− ⊳ −), 0.052 (− + −) and 0.012 (– – –). (a) Heat source f a spline of order one. (b) Heat source f a spline of order two.
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