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Table 1 Algorithm 5.1, Example 1

From: Error analysis of variational discretization solving temperature control problems

Mesh u u h y y h p p h
16 × 16 5.98051E-02 4.92490E-02 4.76241E-02
32 × 32 2.84008E-02 1.25725E-02 1.21182E-02
64 × 64 1.39765E-02 3.15952E-03 3.04294E-03
128 × 128 6.96692E-03 7.90942E-04 7.61570E-04
256 × 256 3.48077E-03 1.97800E-04 1.90445E-04