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Symmetric Matrix-Vector Multiplication

This operation updates vector y by one of the following

displaymath14127

Here A is a symmetric matrix of dimension tex2html_wrap_inline14133 and x and y are vectors of length n . Matrices L and tex2html_wrap_inline14143 indicate the lower and strictly lower triangular part of matrix A , respectively, and U and tex2html_wrap_inline14149 indicate the upper and strictly upper triangular part of matrix A , respectively.




next up previous contents
Next: Standard FORTRAN call Up: Matrix-Vector Operations Previous: PLAPACK calls

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