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| | Guide and Reference |
 | | For SPOF and DPOF, A is a positive definite symmetric matrix. |
 | | The output from SPOF, DPOF, CPOF, and ZPOF should be used only as input to the following subroutines for performing a solve or inverse: SPOSM/SPOICD, DPOSM/DPOICD, CPOSM, and ZPOSM, respectively. |
 | | For SPOF, DPOF, CPOF, and ZPOF: The positive definite matrix A, stored in upper or lower storage mode, is factored using Cholesky factorization, where A is expressed as: |
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