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13-May-2025 18:07:19

spinterp_test()
  MATLAB/Octave version 9.11.0.2358333 (R2021b) Update 7
  Test spinterp()

test_one():
  An example of the use of SPINTERP
  for sparse interpolation in multiple dimensions.

c = 

  struct with fields:

               vals: {[1537x1 double]}
           gridType: 'Chebyshev'
                  d: 2
              range: [2x2 double]
           maxLevel: 8
        estRelError: 5.1195e-16
        estAbsError: 6.6613e-16
         fevalRange: [0.5403 1.8415]
         minGridVal: [0 1]
         maxGridVal: [1 0]
            nPoints: 1537
          fevalTime: 0.1550
    surplusCompTime: 0.1581
            indices: [1x1 struct]


  Maximum interpolation error was 8.88178e-16

test_two():
  Test spinterp() for quadrature in multiple dimensions.
  Using spatial dimension M = 2
  Using maximum level LEVEL_MAX = 8

 Level    Points        Estimate      Error

     0         1           1.125           0.125
     1         5         0.90533       0.0946699
     2        13         1.00044     0.000444761
     3        29        0.998093      0.00190687
     4        65        0.999727     0.000273261
     5       145        0.999961     3.85914e-05
     6       321        0.999995     5.46786e-06
     7       705        0.999999     7.69272e-07
     8      1537               1     1.07125e-07

spinterp_test():
  Normal end of execution.

13-May-2025 18:07:25