UNGTR: generates a complex unitary matrix Q which is defined as the product of n-1 elementary reflectors of order N, as returned by CHETRD: if UPLO = 'U', Q = H(n-1) . . . H(2) H(1), if UPLO = 'L', Q = H(1) H(2) . . . H(n-1).
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| pure subroutine | cungtr (uplo, n, a, lda, tau, work, lwork, info) |
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| | la_cungtr |
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| | la_wungtr |
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| pure subroutine | zungtr (uplo, n, a, lda, tau, work, lwork, info) |
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| | la_zungtr |
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UNGTR: generates a complex unitary matrix Q which is defined as the product of n-1 elementary reflectors of order N, as returned by CHETRD: if UPLO = 'U', Q = H(n-1) . . . H(2) H(1), if UPLO = 'L', Q = H(1) H(2) . . . H(n-1).
◆ cungtr()
| pure subroutine la_lapack::ungtr::cungtr |
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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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complex(sp), dimension(*), intent(in) | tau, |
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complex(sp), dimension(*), intent(out) | work, |
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integer(ilp), intent(in) | lwork, |
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integer(ilp), intent(out) | info ) |
◆ la_cungtr()
| la_lapack::ungtr::la_cungtr |
◆ la_wungtr()
| la_lapack::ungtr::la_wungtr |
◆ la_zungtr()
| la_lapack::ungtr::la_zungtr |
◆ zungtr()
| pure subroutine la_lapack::ungtr::zungtr |
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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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complex(dp), dimension(*), intent(in) | tau, |
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complex(dp), dimension(*), intent(out) | work, |
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integer(ilp), intent(in) | lwork, |
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integer(ilp), intent(out) | info ) |
The documentation for this interface was generated from the following file:
