TBCON: estimates the reciprocal of the condition number of a triangular band 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 | ctbcon (norm, uplo, diag, n, kd, ab, ldab, rcond, work, rwork, info) |
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| | la_ctbcon |
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| subroutine | dtbcon (norm, uplo, diag, n, kd, ab, ldab, rcond, work, iwork, info) |
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| | la_dtbcon |
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| | la_qtbcon |
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| subroutine | stbcon (norm, uplo, diag, n, kd, ab, ldab, rcond, work, iwork, info) |
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| | la_stbcon |
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| | la_wtbcon |
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| subroutine | ztbcon (norm, uplo, diag, n, kd, ab, ldab, rcond, work, rwork, info) |
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| | la_ztbcon |
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TBCON: estimates the reciprocal of the condition number of a triangular band 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)) ).
◆ ctbcon()
| subroutine la_lapack::tbcon::ctbcon |
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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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integer(ilp), intent(in) | kd, |
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complex(sp), dimension(ldab,*), intent(in) | ab, |
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integer(ilp), intent(in) | ldab, |
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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 ) |
◆ dtbcon()
| subroutine la_lapack::tbcon::dtbcon |
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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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integer(ilp), intent(in) | kd, |
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real(dp), dimension(ldab,*), intent(in) | ab, |
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integer(ilp), intent(in) | ldab, |
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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_ctbcon()
| la_lapack::tbcon::la_ctbcon |
◆ la_dtbcon()
| la_lapack::tbcon::la_dtbcon |
◆ la_qtbcon()
| la_lapack::tbcon::la_qtbcon |
◆ la_stbcon()
| la_lapack::tbcon::la_stbcon |
◆ la_wtbcon()
| la_lapack::tbcon::la_wtbcon |
◆ la_ztbcon()
| la_lapack::tbcon::la_ztbcon |
◆ stbcon()
| subroutine la_lapack::tbcon::stbcon |
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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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integer(ilp), intent(in) | kd, |
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real(sp), dimension(ldab,*), intent(in) | ab, |
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integer(ilp), intent(in) | ldab, |
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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 ) |
◆ ztbcon()
| subroutine la_lapack::tbcon::ztbcon |
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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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integer(ilp), intent(in) | kd, |
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complex(dp), dimension(ldab,*), intent(in) | ab, |
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integer(ilp), intent(in) | ldab, |
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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:
