zupgtr.f(3) [debian man page]
zupgtr.f(3) LAPACK zupgtr.f(3) NAME
zupgtr.f - SYNOPSIS
Functions/Subroutines subroutine zupgtr (UPLO, N, AP, TAU, Q, LDQ, WORK, INFO) ZUPGTR Function/Subroutine Documentation subroutine zupgtr (characterUPLO, integerN, complex*16, dimension( * )AP, complex*16, dimension( * )TAU, complex*16, dimension( ldq, * )Q, integerLDQ, complex*16, dimension( * )WORK, integerINFO) ZUPGTR Purpose: ZUPGTR generates a complex unitary matrix Q which is defined as the product of n-1 elementary reflectors H(i) of order n, as returned by ZHPTRD using packed storage: if UPLO = 'U', Q = H(n-1) . . . H(2) H(1), if UPLO = 'L', Q = H(1) H(2) . . . H(n-1). Parameters: UPLO UPLO is CHARACTER*1 = 'U': Upper triangular packed storage used in previous call to ZHPTRD; = 'L': Lower triangular packed storage used in previous call to ZHPTRD. N N is INTEGER The order of the matrix Q. N >= 0. AP AP is COMPLEX*16 array, dimension (N*(N+1)/2) The vectors which define the elementary reflectors, as returned by ZHPTRD. TAU TAU is COMPLEX*16 array, dimension (N-1) TAU(i) must contain the scalar factor of the elementary reflector H(i), as returned by ZHPTRD. Q Q is COMPLEX*16 array, dimension (LDQ,N) The N-by-N unitary matrix Q. LDQ LDQ is INTEGER The leading dimension of the array Q. LDQ >= max(1,N). WORK WORK is COMPLEX*16 array, dimension (N-1) INFO INFO is INTEGER = 0: successful exit < 0: if INFO = -i, the i-th argument had an illegal value Author: Univ. of Tennessee Univ. of California Berkeley Univ. of Colorado Denver NAG Ltd. Date: November 2011 Definition at line 115 of file zupgtr.f. Author Generated automatically by Doxygen for LAPACK from the source code. Version 3.4.1 Sun May 26 2013 zupgtr.f(3)
Check Out this Related Man Page
zupgtr.f(3) LAPACK zupgtr.f(3) NAME
zupgtr.f - SYNOPSIS
Functions/Subroutines subroutine zupgtr (UPLO, N, AP, TAU, Q, LDQ, WORK, INFO) ZUPGTR Function/Subroutine Documentation subroutine zupgtr (characterUPLO, integerN, complex*16, dimension( * )AP, complex*16, dimension( * )TAU, complex*16, dimension( ldq, * )Q, integerLDQ, complex*16, dimension( * )WORK, integerINFO) ZUPGTR Purpose: ZUPGTR generates a complex unitary matrix Q which is defined as the product of n-1 elementary reflectors H(i) of order n, as returned by ZHPTRD using packed storage: if UPLO = 'U', Q = H(n-1) . . . H(2) H(1), if UPLO = 'L', Q = H(1) H(2) . . . H(n-1). Parameters: UPLO UPLO is CHARACTER*1 = 'U': Upper triangular packed storage used in previous call to ZHPTRD; = 'L': Lower triangular packed storage used in previous call to ZHPTRD. N N is INTEGER The order of the matrix Q. N >= 0. AP AP is COMPLEX*16 array, dimension (N*(N+1)/2) The vectors which define the elementary reflectors, as returned by ZHPTRD. TAU TAU is COMPLEX*16 array, dimension (N-1) TAU(i) must contain the scalar factor of the elementary reflector H(i), as returned by ZHPTRD. Q Q is COMPLEX*16 array, dimension (LDQ,N) The N-by-N unitary matrix Q. LDQ LDQ is INTEGER The leading dimension of the array Q. LDQ >= max(1,N). WORK WORK is COMPLEX*16 array, dimension (N-1) INFO INFO is INTEGER = 0: successful exit < 0: if INFO = -i, the i-th argument had an illegal value Author: Univ. of Tennessee Univ. of California Berkeley Univ. of Colorado Denver NAG Ltd. Date: November 2011 Definition at line 115 of file zupgtr.f. Author Generated automatically by Doxygen for LAPACK from the source code. Version 3.4.1 Sun May 26 2013 zupgtr.f(3)