DLATRD Methods |
The DLATRD type exposes the following members.
Name | Description | |
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Run | Purpose ======= DLATRD reduces NB rows and columns of a real symmetric matrix A to symmetric tridiagonal form by an orthogonal similarity transformation Q' * A * Q, and returns the matrices V and W which are needed to apply the transformation to the unreduced part of A. If UPLO = 'U', DLATRD reduces the last NB rows and columns of a matrix, of which the upper triangle is supplied; if UPLO = 'L', DLATRD reduces the first NB rows and columns of a matrix, of which the lower triangle is supplied. This is an auxiliary routine called by DSYTRD. |
Name | Description | |
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GetEnumNames | (Defined by General) | |
IsValidDouble | (Defined by General) |