9a62efcb-e52d-4e14-9623-3443229f69be 3 4 5 false true 0 0 decimal
&[DATE] &[TIME] - &[FILENAME]
&[PAGENUM] / &[COUNT]

Define a "large" 28x28 stiffness matrix.....

Showing stiffness matrix at larger font size....

 3663 1457 1389 - 0 0 1457 2357 0 0 0 1389 - 0 4765 4.491 10 13 - ^ * 1389 - 0 0 4.491 10 13 - ^ * 496.9 0 0 0 1389 - 0 4765 0 0 0 0 4.491 10 13 - ^ * 0 0 0 0 1389 - 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 993.8 - 496.9 - 993.8 - 496.9 0 496.9 - 248.5 - 496.9 248.5 - 0 0 0 993.8 - 496.9 - 993.8 - 0 0 496.9 - 248.5 - 496.9 14 5 mat

Inverting the stiffness matrix gives the correct values....

 0.000949 0.0008207 - 0.0005762 0.0005767 0.0008207 - 0.001758 0.0004152 - 0.0004386 - 0.0005762 0.0004152 - 0.0008365 0.0007708 0.0005767 0.0004386 - 0.0007708 0.009287 0.0003029 0.0001429 - 0.0005232 0.0001866 0.0008823 0.0007665 - 0.000443 0.002283 0.0001093 2.289 10 5 - ^ * 0.0002426 0.0004625 - 0.000444 0.0006101 - 0.0004625 0.003901 1.636 10 5 - ^ * 5.444 10 5 - ^ * 0.0001093 0.000444 - 5.444 10 5 - ^ * - 4.074 10 5 - ^ * 2.289 10 5 - ^ * - 0.0006101 - 0.0003507 1.5 10 5 - ^ * 0.0003473 0.0009586 - 0.0002652 0.0002352 3.031 10 6 - ^ * - 0.002728 0.0003004 0.0001132 - 0.0006991 0.002021 13 4 mat

Defining the inverse as a new variable and then evaluating gives inconsistent results.

0.00105 - 0.002096 1.791 10 5 - ^ * - 0.001418 - 1.291 10 5 - ^ * - 0.0006666 0.0004779 - 0.0002954 - 0.002212 9.326 10 5 - ^ * - 0.002639 - 0.003639 0.0003264 0.004102 - 0.0001221 0.002518 0.001219 - 0.0004428 - 0.007583 0.0001392 - 0.004237 - 0.007164 0.001122 - 0.0007514 - 9.849 10 5 - ^ * - 0.9887 1.954 - 0.7963 2.005 - 0.2657 0.07264 0.09344 - 0.01352 0.04498 0.004083 2.9 7.077 - 2.579 6.996 - 0.8368 0.06849 0.08136 - 0.004863 0.07694 0.001872 0.05523 0.08748 - 0.02769 0.04009 - 0.008992 0.0007852 - 0.0024 0.0008063 - 0.002358 0.0002595 - 0.001041 0.0009251 - 0.000167 - 0.002219 4.482 10 5 - ^ * - 0.001601 - 0.001193 0.0009634 0.006421 - 0.0002977 0.001407 - 0.0009021 0.00119 0.007068 - 0.0003778 0.0999 - 0.07779 0.02209 0.2372 - 0.007187 0.1329 - 0.1627 0.0185 - 0.1093 - 0.005609 - 16 5 mat