Algorithm 646
Published in ACM Transactions on Mathematical Software • Sep 1, 1986
NobleIDNI9P08W79R77S62
Authors:
Charles R. Crawford
Abstract
PDFIND is a FORTRAN-77 implementation of an algorithm that finds a positive definite linear combination of two symmetric matrices, or determines that such a combination does not exist. The algorithm is designed to be independent of the data structures used to store the matrices. The user must provid...
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