POCON: estimates the reciprocal of the condition number (in the 1-norm) of a complex Hermitian positive definite matrix using the Cholesky factorization A = U**H*U or A = L*L**H computed by CPOTRF. An estimate is obtained for norm(inv(A)), and the reciprocal of the condition number is computed as RCOND = 1 / (ANORM * norm(inv(A))).
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| pure subroutine | cpocon (uplo, n, a, lda, anorm, rcond, work, rwork, info) |
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| | la_cpocon |
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| pure subroutine | dpocon (uplo, n, a, lda, anorm, rcond, work, iwork, info) |
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| | la_dpocon |
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| | la_qpocon |
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| pure subroutine | spocon (uplo, n, a, lda, anorm, rcond, work, iwork, info) |
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| | la_spocon |
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| | la_wpocon |
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| pure subroutine | zpocon (uplo, n, a, lda, anorm, rcond, work, rwork, info) |
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| | la_zpocon |
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POCON: estimates the reciprocal of the condition number (in the 1-norm) of a complex Hermitian positive definite matrix using the Cholesky factorization A = U**H*U or A = L*L**H computed by CPOTRF. An estimate is obtained for norm(inv(A)), and the reciprocal of the condition number is computed as RCOND = 1 / (ANORM * norm(inv(A))).
◆ cpocon()
| pure subroutine la_lapack::pocon::cpocon |
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character, intent(in) | uplo, |
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integer(ilp), intent(in) | n, |
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complex(sp), dimension(lda,*), intent(inout) | a, |
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integer(ilp), intent(in) | lda, |
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real(sp), intent(in) | anorm, |
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real(sp), intent(out) | rcond, |
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complex(sp), dimension(*), intent(out) | work, |
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real(sp), dimension(*), intent(out) | rwork, |
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integer(ilp), intent(out) | info ) |
◆ dpocon()
| pure subroutine la_lapack::pocon::dpocon |
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character, intent(in) | uplo, |
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integer(ilp), intent(in) | n, |
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real(dp), dimension(lda,*), intent(inout) | a, |
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integer(ilp), intent(in) | lda, |
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real(dp), intent(in) | anorm, |
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real(dp), intent(out) | rcond, |
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real(dp), dimension(*), intent(out) | work, |
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integer(ilp), dimension(*), intent(out) | iwork, |
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integer(ilp), intent(out) | info ) |
◆ la_cpocon()
| la_lapack::pocon::la_cpocon |
◆ la_dpocon()
| la_lapack::pocon::la_dpocon |
◆ la_qpocon()
| la_lapack::pocon::la_qpocon |
◆ la_spocon()
| la_lapack::pocon::la_spocon |
◆ la_wpocon()
| la_lapack::pocon::la_wpocon |
◆ la_zpocon()
| la_lapack::pocon::la_zpocon |
◆ spocon()
| pure subroutine la_lapack::pocon::spocon |
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character, intent(in) | uplo, |
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integer(ilp), intent(in) | n, |
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real(sp), dimension(lda,*), intent(inout) | a, |
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integer(ilp), intent(in) | lda, |
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real(sp), intent(in) | anorm, |
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real(sp), intent(out) | rcond, |
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real(sp), dimension(*), intent(out) | work, |
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integer(ilp), dimension(*), intent(out) | iwork, |
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integer(ilp), intent(out) | info ) |
◆ zpocon()
| pure subroutine la_lapack::pocon::zpocon |
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character, intent(in) | uplo, |
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integer(ilp), intent(in) | n, |
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complex(dp), dimension(lda,*), intent(inout) | a, |
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integer(ilp), intent(in) | lda, |
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real(dp), intent(in) | anorm, |
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real(dp), intent(out) | rcond, |
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complex(dp), dimension(*), intent(out) | work, |
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real(dp), dimension(*), intent(out) | rwork, |
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integer(ilp), intent(out) | info ) |
The documentation for this interface was generated from the following file:
