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 |
1.535 |
| 1 |
15.3193 |
15.3187 |
15.3189 |
0.000 |
| 2 |
30.8220 |
30.8196 |
30.8205 |
0.000 |
| 3 |
55.1054 |
55.0978 |
55.1006 |
0.000 |
| 4 |
104.3897 |
104.3616 |
104.3721 |
0.000 |
| 5 |
121.6912 |
121.6531 |
121.6674 |
0.000 |
| 6 |
136.5034 |
136.4569 |
136.4743 |
0.000 |
| 7 |
236.4474 |
236.3010 |
236.3559 |
0.001 |
| 8 |
254.7979 |
254.6294 |
254.6926 |
0.001 |
| 9 |
314.2870 |
314.0488 |
314.1381 |
0.001 |
| 10 |
339.7371 |
339.4254 |
339.5423 |
0.001 |
| 11 |
359.3756 |
359.0334 |
359.1618 |
0.001 |
| 12 |
446.9819 |
446.4354 |
446.6404 |
0.001 |
| 13 |
542.0599 |
541.3173 |
541.5958 |
0.001 |
| 14 |
594.8102 |
593.9137 |
594.2499 |
0.002 |
| 15 |
642.7455 |
641.6663 |
642.0710 |
0.002 |
| 16 |
660.0077 |
658.9046 |
659.3183 |
0.002 |
| 17 |
733.6355 |
732.2631 |
732.7778 |
0.002 |
| 18 |
751.9890 |
750.5438 |
751.0857 |
0.002 |
| 19 |
811.6000 |
809.8986 |
810.5366 |
0.002 |
| 20 |
832.7139 |
830.9704 |
831.6242 |
0.002 |
| 21 |
900.4513 |
898.4185 |
899.1808 |
0.002 |
| 22 |
1063.3004 |
1060.1877 |
1061.3550 |
0.003 |
| 23 |
1099.3111 |
1096.1863 |
1097.3581 |
0.003 |
| 24 |
1348.0766 |
1343.4247 |
1345.1692 |
0.003 |
| 25 |
1400.3118 |
1395.5048 |
1397.3074 |
0.003 |
| 26 |
1427.8062 |
1422.8572 |
1424.7131 |
0.003 |
| 27 |
1538.2801 |
1532.0928 |
1534.4131 |
0.004 |
| 28 |
1564.9353 |
1558.5064 |
1560.9173 |
0.004 |
| 29 |
1679.7416 |
1672.7740 |
1675.3868 |
0.004 |
| 30 |
1722.0810 |
1714.6705 |
1717.4494 |
0.004 |
| 31 |
1751.6377 |
1744.3611 |
1747.0898 |
0.004 |
| 32 |
1834.7381 |
1826.2370 |
1829.4249 |
0.005 |
| 33 |
1907.3987 |
1898.1892 |
1901.6428 |
0.005 |
| 34 |
1964.1142 |
1954.9510 |
1958.3872 |
0.005 |
| 35 |
1995.5911 |
1985.8986 |
1989.5333 |
0.005 |
| 36 |
2040.8710 |
2030.3544 |
2034.2981 |
0.005 |
| 37 |
2113.4191 |
2103.5218 |
2107.2333 |
0.005 |
| 38 |
2255.0620 |
2243.1996 |
2247.6480 |
0.005 |
| 39 |
2481.0653 |
2465.8944 |
2471.5835 |
0.006 |
| 40 |
2527.3056 |
2511.5186 |
2517.4387 |
0.006 |
| 41 |
2580.8733 |
2565.7619 |
2571.4287 |
0.006 |
| 42 |
2695.7864 |
2677.9837 |
2684.6597 |
0.007 |
| 43 |
2810.6282 |
2791.6796 |
2798.7853 |
0.007 |
| 44 |
3184.6925 |
3158.3048 |
3168.2001 |
0.008 |
| 45 |
3314.5844 |
3287.6230 |
3297.7335 |
0.008 |
| 46 |
3461.9687 |
3431.3145 |
3442.8099 |
0.009 |
| 47 |
3499.9578 |
3468.7770 |
3480.4698 |
0.009 |
| 48 |
3619.1444 |
3585.5016 |
3598.1177 |
0.009 |
| 49 |
3641.7314 |
3607.6298 |
3620.4179 |
0.009 |
| 50 |
3685.5724 |
3651.2374 |
3664.1130 |
0.009 |
| 51 |
3814.9378 |
3778.3421 |
3792.0655 |
0.010 |
| 52 |
3948.7951 |
3910.6553 |
3924.9577 |
0.010 |
| 53 |
4044.1856 |
4003.1238 |
4018.5220 |
0.010 |
| 54 |
4087.7673 |
4044.9353 |
4060.9973 |
0.010 |
| 55 |
4115.1563 |
4072.5977 |
4088.5572 |
0.010 |
| 56 |
4191.3243 |
4144.1947 |
4161.8683 |
0.011 |
| 57 |
4201.7904 |
4156.3862 |
4173.4128 |
0.011 |
| 58 |
4397.8461 |
4355.5793 |
4371.4293 |
0.010 |
| 59 |
4476.7451 |
4429.1622 |
4447.0058 |
0.011 |
| 60 |
4541.5022 |
4493.6163 |
4511.5735 |
0.011 |
| 61 |
4679.5950 |
4627.1479 |
4646.8156 |
0.011 |
| 62 |
4700.5047 |
4648.0176 |
4667.7003 |
0.011 |
| 63 |
4794.9173 |
4736.4866 |
4758.3982 |
0.012 |
| 64 |
4818.1823 |
4760.4413 |
4782.0942 |
0.012 |
| 65 |
4843.9268 |
4785.4875 |
4807.4022 |
0.012 |
| 66 |
4981.2690 |
4923.9712 |
4945.4578 |
0.012 |
| 67 |
5303.7750 |
5238.8847 |
5263.2185 |
0.012 |
| 68 |
5331.7688 |
5266.2650 |
5290.8289 |
0.012 |
| 69 |
5462.3791 |
5382.8847 |
5412.6951 |
0.015 |
| 70 |
5484.0192 |
5402.0970 |
5432.8179 |
0.015 |
| 71 |
5666.8726 |
5581.2065 |
5613.3313 |
0.015 |
| 72 |
5933.0254 |
5850.8817 |
5881.6856 |
0.014 |
| 73 |
5966.4950 |
5888.9881 |
5918.0532 |
0.013 |
| 74 |
6089.1331 |
6005.1361 |
6036.6350 |
0.014 |
| 75 |
6092.6763 |
6008.6349 |
6040.1505 |
0.014 |
| 76 |
6357.3296 |
6263.6927 |
6298.8065 |
0.015 |
| 77 |
6551.8873 |
6450.1571 |
6488.3059 |
0.016 |
| 78 |
6652.3200 |
6547.8161 |
6587.0051 |
0.016 |
| 79 |
6735.8850 |
6622.1247 |
6664.7848 |
0.017 |
| 80 |
7254.7970 |
7099.6170 |
7157.8095 |
0.021 |
| 81 |
7520.6703 |
7369.3055 |
7426.0673 |
0.020 |
| 82 |
7833.8668 |
7687.1260 |
7742.1538 |
0.019 |
| 83 |
8089.0508 |
7929.6960 |
7989.4540 |
0.020 |
| 84 |
8191.0851 |
8021.0935 |
8084.8403 |
0.021 |
| 85 |
8281.0446 |
8111.4107 |
8175.0234 |
0.020 |
| 86 |
8457.1003 |
8273.0739 |
8342.0838 |
0.022 |
| 87 |
8552.4432 |
8376.2397 |
8442.3160 |
0.021 |
| 88 |
8584.8358 |
8408.0847 |
8474.3663 |
0.021 |
| 89 |
8607.0568 |
8429.8799 |
8496.3212 |
0.021 |
| 90 |
8708.1124 |
8515.7765 |
8587.9025 |
0.022 |
| 91 |
8820.7952 |
8600.3356 |
8683.0080 |
0.025 |
| 92 |
9177.6543 |
8961.5508 |
9042.5896 |
0.024 |
| 93 |
9316.9332 |
9091.6374 |
9176.1234 |
0.024 |
| 94 |
9328.3672 |
9112.8944 |
9193.6967 |
0.023 |
| 95 |
9342.9021 |
9121.0784 |
9204.2623 |
0.024 |
| 96 |
9557.0762 |
9335.8593 |
9418.8157 |
0.023 |
| 97 |
9675.2946 |
9451.2434 |
9535.2626 |
0.023 |
| 98 |
9749.3316 |
9532.5957 |
9613.8717 |
0.022 |
| 99 |
9799.3029 |
9566.0697 |
9653.5321 |
0.024 |
| 100 |
9927.6899 |
9692.1813 |
9780.4970 |
0.024 |