SPCON: estimates the reciprocal of the condition number (in the 1-norm) of a complex symmetric packed matrix A using the factorization A = U*D*U**T or A = L*D*L**T computed by CSPTRF. 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 | cspcon (uplo, n, ap, ipiv, anorm, rcond, work, info) |
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| | la_cspcon |
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| pure subroutine | dspcon (uplo, n, ap, ipiv, anorm, rcond, work, iwork, info) |
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| | la_dspcon |
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| | la_qspcon |
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| pure subroutine | sspcon (uplo, n, ap, ipiv, anorm, rcond, work, iwork, info) |
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| | la_sspcon |
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| | la_wspcon |
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| pure subroutine | zspcon (uplo, n, ap, ipiv, anorm, rcond, work, info) |
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| | la_zspcon |
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SPCON: estimates the reciprocal of the condition number (in the 1-norm) of a complex symmetric packed matrix A using the factorization A = U*D*U**T or A = L*D*L**T computed by CSPTRF. An estimate is obtained for norm(inv(A)), and the reciprocal of the condition number is computed as RCOND = 1 / (ANORM * norm(inv(A))).
◆ cspcon()
| pure subroutine la_lapack::spcon::cspcon |
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character, intent(in) | uplo, |
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integer(ilp), intent(in) | n, |
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complex(sp), dimension(*), intent(in) | ap, |
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integer(ilp), dimension(*), intent(in) | ipiv, |
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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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integer(ilp), intent(out) | info ) |
◆ dspcon()
| pure subroutine la_lapack::spcon::dspcon |
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character, intent(in) | uplo, |
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integer(ilp), intent(in) | n, |
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real(dp), dimension(*), intent(in) | ap, |
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integer(ilp), dimension(*), intent(in) | ipiv, |
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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_cspcon()
| la_lapack::spcon::la_cspcon |
◆ la_dspcon()
| la_lapack::spcon::la_dspcon |
◆ la_qspcon()
| la_lapack::spcon::la_qspcon |
◆ la_sspcon()
| la_lapack::spcon::la_sspcon |
◆ la_wspcon()
| la_lapack::spcon::la_wspcon |
◆ la_zspcon()
| la_lapack::spcon::la_zspcon |
◆ sspcon()
| pure subroutine la_lapack::spcon::sspcon |
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character, intent(in) | uplo, |
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integer(ilp), intent(in) | n, |
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real(sp), dimension(*), intent(in) | ap, |
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integer(ilp), dimension(*), intent(in) | ipiv, |
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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 ) |
◆ zspcon()
| pure subroutine la_lapack::spcon::zspcon |
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character, intent(in) | uplo, |
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integer(ilp), intent(in) | n, |
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complex(dp), dimension(*), intent(in) | ap, |
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integer(ilp), dimension(*), intent(in) | ipiv, |
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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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integer(ilp), intent(out) | info ) |
The documentation for this interface was generated from the following file:
