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Home MathPack OpenArrays Procedures and Functions EigenDecomposition | |||||||||||
See also: CalcEigVec | |||||||||||
EigenDecomposition |
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The function EigenDecomposition calculates the eigenvectors and eigenvalues of the symmetric matrix Data. The results of the eigenanalysis (i.e. the eigenvalues and the eigenvectors) are returned in the variable parameters EigenVectors and EigenValues. If the parameter SortEV is set to TRUE the eigenvectors and eigenvalues are sorted in decreasing order of the eigenvalues. CalcEigVec increments the global variable ProcStat and calls the feedback routine MathFeedBackProc in order to allow feedback to the user during time consuming calculations. The EigenDecomposition function can be terminated by setting the global variable AbortMathProc to TRUE. The function returns the following error codes: 0 ... everything is OK
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