fe_tester() result

>> fe_tester()
impossible to create invertible matrix
n = 10
d = 0.050000

0
n = 10
d = 0.1000
elapsed_time = 0.021981
full_elapsed_time = 0.018978
-3.0031e-03

2.2204e-16
n = 10
d = 0.1500
elapsed_time = 7.0000e-04
full_elapsed_time = 9.2888e-04
2.2888e-04

2.0770e-16
n = 10
d = 0.2000
elapsed_time = 6.4421e-04
full_elapsed_time = 8.5592e-04
2.1172e-04

1.2413e-16
n = 10
d = 0.2500
elapsed_time = 3.2997e-04
full_elapsed_time = 4.5109e-04
1.2112e-04

2.9374e-16
n = 10
d = 0.3000
elapsed_time = 3.6097e-04
full_elapsed_time = 4.3893e-04
7.7963e-05

2.7230e-16
n = 30
d = 0.050000
elapsed_time = 7.5603e-04
full_elapsed_time = 2.6572e-03
1.9011e-03

3.1889e-16
n = 30
d = 0.1000
elapsed_time = 9.4700e-04
full_elapsed_time = 3.0379e-03
2.0909e-03

1.1503e-15
n = 30
d = 0.1500
elapsed_time = 9.3985e-04
full_elapsed_time = 2.6450e-03
1.7052e-03

8.4187e-16
n = 30
d = 0.2000
elapsed_time = 9.4700e-04
full_elapsed_time = 2.6329e-03
1.6859e-03

6.3292e-16
n = 30
d = 0.2500
elapsed_time = 1.0941e-03
full_elapsed_time = 3.1700e-03
2.0759e-03

9.8101e-16
n = 30
d = 0.3000
elapsed_time = 2.7220e-03
full_elapsed_time = 3.1610e-03
4.3893e-04

4.2639e-16
n = 50
d = 0.050000
elapsed_time = 1.1520e-03
full_elapsed_time = 7.3278e-03
6.1758e-03

8.8296e-16
n = 50
d = 0.1000
elapsed_time = 1.9290e-03
full_elapsed_time = 0.011886
9.9568e-03

1.8569e-15
n = 50
d = 0.1500
elapsed_time = 1.9259e-03
full_elapsed_time = 6.9101e-03
4.9841e-03

1.9414e-15
n = 50
d = 0.2000
elapsed_time = 3.9120e-03
full_elapsed_time = 7.6330e-03
3.7210e-03

1.7850e-15
n = 50
d = 0.2500
elapsed_time = 2.8000e-03
full_elapsed_time = 7.8640e-03
5.0640e-03

3.5061e-15
n = 50
d = 0.3000
elapsed_time = 4.8380e-03
full_elapsed_time = 7.5922e-03
2.7542e-03

7.0545e-16
n = 70
d = 0.050000
elapsed_time = 2.4419e-03
full_elapsed_time = 0.019670
0.017228

1.4391e-15
n = 70
d = 0.1000
elapsed_time = 2.6560e-03
full_elapsed_time = 0.013720
0.011064

3.6340e-15
n = 70
d = 0.1500
elapsed_time = 3.5770e-03
full_elapsed_time = 0.018292
0.014715

4.9210e-15
n = 70
d = 0.2000
elapsed_time = 4.0529e-03
full_elapsed_time = 0.014616
0.010563

7.1630e-15
n = 70
d = 0.2500
elapsed_time = 5.0831e-03
full_elapsed_time = 0.015804
0.010721

6.2513e-15
n = 70
d = 0.3000
elapsed_time = 6.8889e-03
full_elapsed_time = 0.015182
8.2932e-03

1.0650e-15
n = 100
d = 0.050000
elapsed_time = 3.1290e-03
full_elapsed_time = 0.033818
0.030689

2.5565e-15
n = 100
d = 0.1000
elapsed_time = 5.2569e-03
full_elapsed_time = 0.030484
0.025227

6.1574e-15
n = 100
d = 0.1500
elapsed_time = 7.1609e-03
full_elapsed_time = 0.030377
0.023216

6.1504e-15
n = 100
d = 0.2000
elapsed_time = 9.0349e-03
full_elapsed_time = 0.034460
0.025425

1.6755e-14
n = 100
d = 0.2500
elapsed_time = 0.013700
full_elapsed_time = 0.029052
0.015352

3.0796e-14
n = 100
d = 0.3000
elapsed_time = 0.011123
full_elapsed_time = 0.029199
0.018076

1.2574e-14
n = 300
d = 0.050000
elapsed_time = 0.018759
full_elapsed_time = 0.2435
0.2247

1.0712e-13
n = 300
d = 0.1000
elapsed_time = 0.033808
full_elapsed_time = 0.2875
0.2537

2.9567e-13
n = 300
d = 0.1500
elapsed_time = 0.066383
full_elapsed_time = 0.2497
0.1833

1.2663e-12
n = 300
d = 0.2000
elapsed_time = 0.067459
full_elapsed_time = 0.3563
0.2888

9.5858e-12
n = 300
d = 0.2500
elapsed_time = 0.094229
full_elapsed_time = 0.2722
0.1779

5.0968e-12
n = 300
d = 0.3000
elapsed_time = 0.1157
full_elapsed_time = 0.3147
0.1990

6.0356e-14
n = 500
d = 0.050000
elapsed_time = 0.060731
full_elapsed_time = 0.8193
0.7586

2.3233e-12
n = 500
d = 0.1000
elapsed_time = 0.093188
full_elapsed_time = 0.7646
0.6714

2.8716e-11
n = 500
d = 0.1500
elapsed_time = 0.4334
full_elapsed_time = 2.1527
1.7193

2.8473e-10
n = 500
d = 0.2000
elapsed_time = 0.5569
full_elapsed_time = 2.3185
1.7617

6.0773e-10
n = 500
d = 0.2500
elapsed_time = 0.6632
full_elapsed_time = 2.3100
1.6468

3.0568e-09
n = 500
d = 0.3000
elapsed_time = 0.2800
full_elapsed_time = 0.7317
0.4518

3.5162e-13
n = 700
d = 0.050000
elapsed_time = 0.1078
full_elapsed_time = 1.4358
1.3280

5.7629e-12
n = 700
d = 0.1000
elapsed_time = 0.1840
full_elapsed_time = 1.4448
1.2608

3.6307e-10
n = 700
d = 0.1500
elapsed_time = 0.2655
full_elapsed_time = 1.4849
1.2194

2.5934e-08
n = 700
d = 0.2000
elapsed_time = 0.3620
full_elapsed_time = 1.4858
1.1238

2.8908e-07
n = 700
d = 0.2500
elapsed_time = 1.3749
full_elapsed_time = 4.5400
3.1652

9.1929e-07
n = 700
d = 0.3000
elapsed_time = 1.6381
full_elapsed_time = 4.5099
2.8717

3.0520e-12
n = 1000
d = 0.050000
elapsed_time = 0.5399
full_elapsed_time = 8.5304
7.9905

3.3079e-09
n = 1000
d = 0.1000
elapsed_time = 0.4321
full_elapsed_time = 3.1415
2.7094

1.3822e-07
n = 1000
d = 0.1500
elapsed_time = 0.6381
full_elapsed_time = 3.3551
2.7170

3.3167e-05
n = 1000
d = 0.2000
elapsed_time = 2.1246
full_elapsed_time = 8.4481
6.3235

0.016746
n = 1000
d = 0.2500
elapsed_time = 2.7531
full_elapsed_time = 8.8472
6.0940

0.1693
n = 1000
d = 0.3000
elapsed_time = 3.3729
full_elapsed_time = 8.9095
5.5366