fortran-lapack
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la_lapack::la_gercond Interface Reference

LA_GERCOND: estimates the Skeel condition number of op(A) * op2(C) where op2 is determined by CMODE as follows CMODE = 1 op2(C) = C CMODE = 0 op2(C) = I CMODE = -1 op2(C) = inv(C) The Skeel condition number cond(A) = norminf( |inv(A)||A| ) is computed by computing scaling factors R such that diag(R)*A*op2(C) is row equilibrated and computing the standard infinity-norm condition number. More...

Public Member Functions

real(dp) function dla_gercond (trans, n, a, lda, af, ldaf, ipiv, cmode, c, info, work, iwork)
 
 la_dla_gercond
 
 la_qla_gercond
 
real(sp) function sla_gercond (trans, n, a, lda, af, ldaf, ipiv, cmode, c, info, work, iwork)
 
 la_sla_gercond
 

Detailed Description

LA_GERCOND: estimates the Skeel condition number of op(A) * op2(C) where op2 is determined by CMODE as follows CMODE = 1 op2(C) = C CMODE = 0 op2(C) = I CMODE = -1 op2(C) = inv(C) The Skeel condition number cond(A) = norminf( |inv(A)||A| ) is computed by computing scaling factors R such that diag(R)*A*op2(C) is row equilibrated and computing the standard infinity-norm condition number.

Member Function/Subroutine Documentation

◆ dla_gercond()

real(dp) function la_lapack::la_gercond::dla_gercond ( character, intent(in)  trans,
integer(ilp), intent(in)  n,
real(dp), dimension(lda,*), intent(in)  a,
integer(ilp), intent(in)  lda,
real(dp), dimension(ldaf,*), intent(in)  af,
integer(ilp), intent(in)  ldaf,
integer(ilp), dimension(*), intent(in)  ipiv,
integer(ilp), intent(in)  cmode,
real(dp), dimension(*), intent(in)  c,
integer(ilp), intent(out)  info,
real(dp), dimension(*), intent(out)  work,
integer(ilp), dimension(*), intent(out)  iwork 
)

◆ la_dla_gercond()

la_lapack::la_gercond::la_dla_gercond

◆ la_qla_gercond()

la_lapack::la_gercond::la_qla_gercond

◆ la_sla_gercond()

la_lapack::la_gercond::la_sla_gercond

◆ sla_gercond()

real(sp) function la_lapack::la_gercond::sla_gercond ( character, intent(in)  trans,
integer(ilp), intent(in)  n,
real(sp), dimension(lda,*), intent(in)  a,
integer(ilp), intent(in)  lda,
real(sp), dimension(ldaf,*), intent(in)  af,
integer(ilp), intent(in)  ldaf,
integer(ilp), dimension(*), intent(in)  ipiv,
integer(ilp), intent(in)  cmode,
real(sp), dimension(*), intent(in)  c,
integer(ilp), intent(out)  info,
real(sp), dimension(*), intent(out)  work,
integer(ilp), dimension(*), intent(out)  iwork 
)

The documentation for this interface was generated from the following file: