Collaboration diagram for double:

Functions
double precision function	dlansy (NORM, UPLO, N, A, LDA, WORK)
	DLANSY returns the value of the 1-norm, or the Frobenius norm, or the infinity norm, or the element of largest absolute value of a real symmetric matrix. More...

subroutine	dlaqsy (UPLO, N, A, LDA, S, SCOND, AMAX, EQUED)
	DLAQSY scales a symmetric/Hermitian matrix, using scaling factors computed by spoequ. More...

subroutine	dlasy2 (LTRANL, LTRANR, ISGN, N1, N2, TL, LDTL, TR, LDTR, B, LDB, SCALE, X, LDX, XNORM, INFO)
	DLASY2 solves the Sylvester matrix equation where the matrices are of order 1 or 2. More...

subroutine	dsyswapr (UPLO, N, A, LDA, I1, I2)
	DSYSWAPR applies an elementary permutation on the rows and columns of a symmetric matrix. More...

subroutine	dtgsy2 (TRANS, IJOB, M, N, A, LDA, B, LDB, C, LDC, D, LDD, E, LDE, F, LDF, SCALE, RDSUM, RDSCAL, IWORK, PQ, INFO)
	DTGSY2 solves the generalized Sylvester equation (unblocked algorithm). More...

Detailed Description

This is the group of double auxiliary functions for SY matrices

Functions