From: Numerical solution to Bitsadze-Samarskii type elliptic overdetermined multipoint NBVP
Difference scheme | N = M = 20 | N = M = 40 | N = M = 80 | N = M = 160 |
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First order of the ADS | 6.12 × 10−3 | 2.69 × 10−3 | 1.25 × 10−3 | 6.03 × 10−4 |
Second order of the ADS | 1.73 × 10−3 | 4.36 × 10−4 | 1.09 × 10−4 | 2.73 × 10−5 |