zlacrt (l) - Linux Manuals

zlacrt: performs the operation ( c s )( x ) ==> ( x ) ( -s c )( y ) ( y ) where c and s are complex and the vectors x and y are complex

NAME

ZLACRT - performs the operation ( c s )( x ) ==> ( x ) ( -s c )( y ) ( y ) where c and s are complex and the vectors x and y are complex

SYNOPSIS

SUBROUTINE ZLACRT(
N, CX, INCX, CY, INCY, C, S )

    
INTEGER INCX, INCY, N

    
COMPLEX*16 C, S

    
COMPLEX*16 CX( * ), CY( * )

PURPOSE

ZLACRT performs the operation

ARGUMENTS

N (input) INTEGER
The number of elements in the vectors CX and CY.
CX (input/output) COMPLEX*16 array, dimension (N)
On input, the vector x. On output, CX is overwritten with c*x + s*y.
INCX (input) INTEGER
The increment between successive values of CX. INCX <> 0.
CY (input/output) COMPLEX*16 array, dimension (N)
On input, the vector y. On output, CY is overwritten with -s*x + c*y.
INCY (input) INTEGER
The increment between successive values of CY. INCY <> 0.
C (input) COMPLEX*16
S (input) COMPLEX*16 C and S define the matrix [ C S ]. [ -S C ]

Pages related to zlacrt

  • zlacrt (3)
  • zlacrm (l) - performs a very simple matrix-matrix multiplication
  • zlacn2 (l) - estimates the 1-norm of a square, complex matrix A
  • zlacon (l) - estimates the 1-norm of a square, complex matrix A
  • zlacp2 (l) - copies all or part of a real two-dimensional matrix A to a complex matrix B
  • zlacpy (l) - copies all or part of a two-dimensional matrix A to another matrix B
  • zla_gbamv (l) - performs one of the matrix-vector operations y := alpha*abs(A)*abs(x) + beta*abs(y),
  • zla_gbrcond_c (l) - ZLA_GBRCOND_C Compute the infinity norm condition number of op(A) * inv(diag(C)) where C is a DOUBLE PRECISION vector