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I'm currently using BLAS function DSYMM to compute Y = AX and then DGEMM for YA', but I'm wondering is there some more efficient way of computing the matrix product AXAT, where A is an arbitrary n×n matrix and X is a symmetric n×n matrix?

Rody Oldenhuis
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Jouni Helske
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    Is there any repetition in your computation? That is, are either of the terms constant for at least a few iterations? What size matrices? – Peter Nov 08 '16 at 13:22

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