Home •FEM & PW Home • Comparing Eigenvalues
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First 100 Eigenvalues
| Number | Finite Element Method | Pointwise Method | Predicted Eigenvalues | Error |
| 0 |
-0.0000 |
0.0000 |
-0.0000 |
1.493 |
| 1 |
8.1312 |
8.1305 |
8.1307 |
0.000 |
| 2 |
25.3748 |
25.3677 |
25.3703 |
0.000 |
| 3 |
37.7097 |
37.6936 |
37.6996 |
0.000 |
| 4 |
56.4748 |
56.4411 |
56.4537 |
0.001 |
| 5 |
80.3886 |
80.3210 |
80.3464 |
0.001 |
| 6 |
92.3316 |
92.2467 |
92.2786 |
0.001 |
| 7 |
114.8165 |
114.6580 |
114.7174 |
0.001 |
| 8 |
157.6104 |
157.3307 |
157.4356 |
0.002 |
| 9 |
161.5759 |
161.2589 |
161.3778 |
0.002 |
| 10 |
196.9805 |
196.5803 |
196.7303 |
0.002 |
| 11 |
225.0870 |
224.4628 |
224.6969 |
0.003 |
| 12 |
274.7275 |
273.9676 |
274.2526 |
0.003 |
| 13 |
300.7394 |
299.6682 |
300.0699 |
0.004 |
| 14 |
316.3272 |
315.1488 |
315.5907 |
0.004 |
| 15 |
337.5677 |
336.2054 |
336.7162 |
0.004 |
| 16 |
404.1735 |
402.7042 |
403.2552 |
0.004 |
| 17 |
441.7420 |
439.5971 |
440.4015 |
0.005 |
| 18 |
459.9796 |
457.4247 |
458.3828 |
0.006 |
| 19 |
484.2792 |
481.8762 |
482.7773 |
0.005 |
| 20 |
569.0252 |
565.9936 |
567.1305 |
0.005 |
| 21 |
577.5653 |
574.0715 |
575.3817 |
0.006 |
| 22 |
620.3594 |
616.2411 |
617.7854 |
0.007 |
| 23 |
647.5311 |
642.5195 |
644.3988 |
0.008 |
| 24 |
683.6657 |
679.0463 |
680.7786 |
0.007 |
| 25 |
693.8277 |
687.9958 |
690.1827 |
0.008 |
| 26 |
801.9449 |
796.4066 |
798.4835 |
0.007 |
| 27 |
818.4338 |
811.1802 |
813.9003 |
0.009 |
| 28 |
870.8795 |
862.6088 |
865.7103 |
0.009 |
| 29 |
908.8325 |
899.0760 |
902.7347 |
0.011 |
| 30 |
931.7415 |
922.3796 |
925.8903 |
0.010 |
| 31 |
960.6722 |
951.5835 |
954.9917 |
0.009 |
| 32 |
977.4767 |
965.7468 |
970.1455 |
0.012 |
| 33 |
1126.7082 |
1115.1150 |
1119.4625 |
0.010 |
| 34 |
1149.7117 |
1135.4102 |
1140.7733 |
0.012 |
| 35 |
1174.2150 |
1163.6776 |
1167.6291 |
0.009 |
| 36 |
1223.2633 |
1204.9312 |
1211.8058 |
0.015 |
| 37 |
1276.6123 |
1256.4397 |
1264.0044 |
0.016 |
| 38 |
1288.6379 |
1268.9018 |
1276.3029 |
0.015 |
| 39 |
1331.5189 |
1310.5372 |
1318.4053 |
0.016 |
| 40 |
1350.2948 |
1331.0503 |
1338.2670 |
0.014 |
| 41 |
1376.9640 |
1351.6932 |
1361.1698 |
0.018 |
| 42 |
1585.1184 |
1561.9394 |
1570.6315 |
0.015 |
| 43 |
1615.9645 |
1586.2269 |
1597.3785 |
0.018 |
| 44 |
1630.7340 |
1606.3084 |
1615.4680 |
0.015 |
| 45 |
1719.7638 |
1682.8595 |
1696.6986 |
0.021 |
| 46 |
1782.3013 |
1746.8881 |
1760.1681 |
0.020 |
| 47 |
1795.1595 |
1754.6922 |
1769.8674 |
0.023 |
| 48 |
1811.9650 |
1777.3295 |
1790.3178 |
0.019 |
| 49 |
1876.2174 |
1838.6729 |
1852.7521 |
0.020 |
| 50 |
1898.1942 |
1859.7008 |
1874.1358 |
0.020 |
| 51 |
1923.9005 |
1879.1766 |
1895.9481 |
0.023 |
| 52 |
1938.9893 |
1890.2197 |
1908.5083 |
0.025 |
| 53 |
2141.5262 |
2100.8972 |
2116.1331 |
0.019 |
| 54 |
2234.9832 |
2188.8385 |
2206.1428 |
0.021 |
| 55 |
2271.4333 |
2215.1026 |
2236.2266 |
0.025 |
| 56 |
2278.3275 |
2225.1028 |
2245.0621 |
0.023 |
| 57 |
2420.5246 |
2350.4756 |
2376.7440 |
0.029 |
| 58 |
2481.2146 |
2425.8056 |
2446.5840 |
0.022 |
| 59 |
2523.5811 |
2448.4779 |
2476.6416 |
0.030 |
| 60 |
2581.1967 |
2503.8480 |
2532.8537 |
0.030 |
| 61 |
2590.8189 |
2519.5169 |
2546.2551 |
0.028 |
| 62 |
2659.4813 |
2577.9317 |
2608.5128 |
0.031 |
| 63 |
2672.3842 |
2592.3690 |
2622.3747 |
0.030 |
| 64 |
2687.9207 |
2609.3720 |
2638.8277 |
0.029 |
| 65 |
2722.7201 |
2628.1141 |
2663.5914 |
0.035 |
| 66 |
2920.8979 |
2844.8575 |
2873.3727 |
0.026 |
| 67 |
3047.5921 |
2967.1396 |
2997.3093 |
0.026 |
| 68 |
3163.0312 |
3059.3814 |
3098.2500 |
0.033 |
| 69 |
3188.1635 |
3097.8885 |
3131.7416 |
0.028 |
| 70 |
3206.4715 |
3101.9640 |
3141.1543 |
0.033 |
| 71 |
3269.3479 |
3161.0443 |
3201.6581 |
0.033 |
| 72 |
3409.4256 |
3291.3689 |
3335.6402 |
0.035 |
| 73 |
3414.9477 |
3303.3200 |
3345.1804 |
0.033 |
| 74 |
3514.6616 |
3403.4552 |
3445.1576 |
0.032 |
| 75 |
3556.3709 |
3417.2898 |
3469.4452 |
0.039 |
| 76 |
3644.7567 |
3502.7189 |
3555.9831 |
0.039 |
| 77 |
3656.0432 |
3521.9423 |
3572.2301 |
0.037 |
| 78 |
3667.5829 |
3529.4392 |
3581.2431 |
0.038 |
| 79 |
3751.5140 |
3599.3822 |
3656.4316 |
0.041 |
| 80 |
3773.8014 |
3626.8244 |
3681.9408 |
0.039 |
| 81 |
3794.1130 |
3651.1496 |
3704.7608 |
0.038 |
| 82 |
3833.0251 |
3661.5974 |
3725.8828 |
0.045 |
| 83 |
3950.3031 |
3786.5119 |
3847.9336 |
0.041 |
| 84 |
4350.5586 |
4194.8099 |
4253.2157 |
0.036 |
| 85 |
4418.2201 |
4247.9663 |
4311.8115 |
0.039 |
| 86 |
4493.6017 |
4283.3987 |
4362.2248 |
0.047 |
| 87 |
4532.5709 |
4351.0543 |
4419.1230 |
0.040 |
| 88 |
4549.1296 |
4376.3103 |
4441.1175 |
0.038 |
| 89 |
4598.8062 |
4401.1222 |
4475.2537 |
0.043 |
| 90 |
4723.2185 |
4534.3743 |
4605.1909 |
0.040 |
| 91 |
4843.3888 |
4623.7745 |
4706.1298 |
0.045 |
| 92 |
4851.7137 |
4655.6114 |
4729.1498 |
0.040 |
| 93 |
5009.2637 |
4764.9430 |
4856.5633 |
0.049 |
| 94 |
5038.4137 |
4800.0968 |
4889.4656 |
0.047 |
| 95 |
5118.5698 |
4866.1912 |
4960.8332 |
0.049 |
| 96 |
5170.1544 |
4907.0059 |
5005.6866 |
0.051 |
| 97 |
5182.9732 |
4918.2617 |
5017.5285 |
0.051 |
| 98 |
5196.7495 |
4948.6483 |
5041.6862 |
0.048 |
| 99 |
5252.2190 |
4983.2485 |
5084.1124 |
0.051 |
| 100 |
5317.3683 |
5027.7946 |
5136.3847 |
0.054 |