add getArray function to RectMatrix and Vector classes
more work in Snapshot
Snapshot and SnapshotManager in progress
Math library pass the unit test
except diagonalize(), all of functions in math library pass the test
more bugs get fixed at math library
more tests on math library
math library in progress
fix incompatible declaration in jacobi
math library in progress
Matrix in progress, test in isOrthogonal of SquareMatrix is failed by some reasons
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