It points out that the main idea of ancient Chinese mathematicians for calculating such problems was to change an indeterminateproblem into a determinate one.
This question belongs to the indeterminateproblem, that is, infinite solutions can be obtained from the equations of the measured small magnetic fields on the detector.
该问题属不定问题，即根据探头测量的微小磁场所建立的方程组求得的未知脑磁源有无穷组解。
3
Finite beam segment method is an effective way to solve the shear lag problem of statically indeterminate structure, such as continuous girder with constant cross section etc.