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- CCCCLLLLAAAATTTTZZZZMMMM((((3333SSSS)))) CCCCLLLLAAAATTTTZZZZMMMM((((3333SSSS))))
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- NNNNAAAAMMMMEEEE
- CLATZM - routine is deprecated and has been replaced by routine CUNMRZ
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- SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
- SUBROUTINE CLATZM( SIDE, M, N, V, INCV, TAU, C1, C2, LDC, WORK )
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- CHARACTER SIDE
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- INTEGER INCV, LDC, M, N
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- COMPLEX TAU
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- COMPLEX C1( LDC, * ), C2( LDC, * ), V( * ), WORK( * )
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- IIIIMMMMPPPPLLLLEEEEMMMMEEEENNNNTTTTAAAATTTTIIIIOOOONNNN
- These routines are part of the SCSL Scientific Library and can be loaded
- using either the -lscs or the -lscs_mp option. The -lscs_mp option
- directs the linker to use the multi-processor version of the library.
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- When linking to SCSL with -lscs or -lscs_mp, the default integer size is
- 4 bytes (32 bits). Another version of SCSL is available in which integers
- are 8 bytes (64 bits). This version allows the user access to larger
- memory sizes and helps when porting legacy Cray codes. It can be loaded
- by using the -lscs_i8 option or the -lscs_i8_mp option. A program may use
- only one of the two versions; 4-byte integer and 8-byte integer library
- calls cannot be mixed.
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- PPPPUUUURRRRPPPPOOOOSSSSEEEE
- This routine is deprecated and has been replaced by routine CUNMRZ.
- CLATZM applies a Householder matrix generated by CTZRQF to a matrix.
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- Let P = I - tau*u*u', u = ( 1 ),
- ( v )
- where v is an (m-1) vector if SIDE = 'L', or a (n-1) vector if SIDE =
- 'R'.
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- If SIDE equals 'L', let
- C = [ C1 ] 1
- [ C2 ] m-1
- n
- Then C is overwritten by P*C.
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- If SIDE equals 'R', let
- C = [ C1, C2 ] m
- 1 n-1
- Then C is overwritten by C*P.
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- AAAARRRRGGGGUUUUMMMMEEEENNNNTTTTSSSS
- SIDE (input) CHARACTER*1
- = 'L': form P * C
- = 'R': form C * P
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- PPPPaaaaggggeeee 1111
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- CCCCLLLLAAAATTTTZZZZMMMM((((3333SSSS)))) CCCCLLLLAAAATTTTZZZZMMMM((((3333SSSS))))
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- M (input) INTEGER
- The number of rows of the matrix C.
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- N (input) INTEGER
- The number of columns of the matrix C.
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- V (input) COMPLEX array, dimension
- (1 + (M-1)*abs(INCV)) if SIDE = 'L' (1 + (N-1)*abs(INCV)) if SIDE
- = 'R' The vector v in the representation of P. V is not used if
- TAU = 0.
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- INCV (input) INTEGER
- The increment between elements of v. INCV <> 0
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- TAU (input) COMPLEX
- The value tau in the representation of P.
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- C1 (input/output) COMPLEX array, dimension
- (LDC,N) if SIDE = 'L' (M,1) if SIDE = 'R' On entry, the n-
- vector C1 if SIDE = 'L', or the m-vector C1 if SIDE = 'R'.
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- On exit, the first row of P*C if SIDE = 'L', or the first column
- of C*P if SIDE = 'R'.
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- C2 (input/output) COMPLEX array, dimension
- (LDC, N) if SIDE = 'L' (LDC, N-1) if SIDE = 'R' On entry, the
- (m - 1) x n matrix C2 if SIDE = 'L', or the m x (n - 1) matrix C2
- if SIDE = 'R'.
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- On exit, rows 2:m of P*C if SIDE = 'L', or columns 2:m of C*P if
- SIDE = 'R'.
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- LDC (input) INTEGER
- The leading dimension of the arrays C1 and C2. LDC >= max(1,M).
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- WORK (workspace) COMPLEX array, dimension
- (N) if SIDE = 'L' (M) if SIDE = 'R'
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- SSSSEEEEEEEE AAAALLLLSSSSOOOO
- INTRO_LAPACK(3S), INTRO_SCSL(3S)
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- This man page is available only online.
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- PPPPaaaaggggeeee 2222
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