TPCON: estimates the reciprocal of the condition number of a packed triangular matrix A, in either the 1-norm or the infinity-norm. The norm of A is computed and an estimate is obtained for norm(inv(A)), then the reciprocal of the condition number is computed as RCOND = 1 / ( norm(A) * norm(inv(A)) ).
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| subroutine | ctpcon (norm, uplo, diag, n, ap, rcond, work, rwork, info) |
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| | la_ctpcon |
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| subroutine | dtpcon (norm, uplo, diag, n, ap, rcond, work, iwork, info) |
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| | la_dtpcon |
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| | la_qtpcon |
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| subroutine | stpcon (norm, uplo, diag, n, ap, rcond, work, iwork, info) |
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| | la_stpcon |
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| | la_wtpcon |
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| subroutine | ztpcon (norm, uplo, diag, n, ap, rcond, work, rwork, info) |
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| | la_ztpcon |
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TPCON: estimates the reciprocal of the condition number of a packed triangular matrix A, in either the 1-norm or the infinity-norm. The norm of A is computed and an estimate is obtained for norm(inv(A)), then the reciprocal of the condition number is computed as RCOND = 1 / ( norm(A) * norm(inv(A)) ).
◆ ctpcon()
| subroutine la_lapack::tpcon::ctpcon |
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character, intent(in) | norm, |
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character, intent(in) | uplo, |
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character, intent(in) | diag, |
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integer(ilp), intent(in) | n, |
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complex(sp), dimension(*), intent(in) | ap, |
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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 ) |
◆ dtpcon()
| subroutine la_lapack::tpcon::dtpcon |
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character, intent(in) | norm, |
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character, intent(in) | uplo, |
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character, intent(in) | diag, |
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integer(ilp), intent(in) | n, |
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real(dp), dimension(*), intent(in) | ap, |
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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_ctpcon()
| la_lapack::tpcon::la_ctpcon |
◆ la_dtpcon()
| la_lapack::tpcon::la_dtpcon |
◆ la_qtpcon()
| la_lapack::tpcon::la_qtpcon |
◆ la_stpcon()
| la_lapack::tpcon::la_stpcon |
◆ la_wtpcon()
| la_lapack::tpcon::la_wtpcon |
◆ la_ztpcon()
| la_lapack::tpcon::la_ztpcon |
◆ stpcon()
| subroutine la_lapack::tpcon::stpcon |
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character, intent(in) | norm, |
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character, intent(in) | uplo, |
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character, intent(in) | diag, |
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integer(ilp), intent(in) | n, |
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real(sp), dimension(*), intent(in) | ap, |
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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 ) |
◆ ztpcon()
| subroutine la_lapack::tpcon::ztpcon |
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character, intent(in) | norm, |
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character, intent(in) | uplo, |
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character, intent(in) | diag, |
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integer(ilp), intent(in) | n, |
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complex(dp), dimension(*), intent(in) | ap, |
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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:
