LAPACK  3.5.0
LAPACK: Linear Algebra PACKage
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zgeru.f File Reference

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subroutine zgeru (M, N, ALPHA, X, INCX, Y, INCY, A, LDA)
 ZGERU More...

Function/Subroutine Documentation

subroutine zgeru ( integer  M,
integer  N,
complex*16  ALPHA,
complex*16, dimension(*)  X,
integer  INCX,
complex*16, dimension(*)  Y,
integer  INCY,
complex*16, dimension(lda,*)  A,
integer  LDA 


 ZGERU  performs the rank 1 operation

    A := alpha*x*y**T + A,

 where alpha is a scalar, x is an m element vector, y is an n element
 vector and A is an m by n matrix.
          M is INTEGER
           On entry, M specifies the number of rows of the matrix A.
           M must be at least zero.
          N is INTEGER
           On entry, N specifies the number of columns of the matrix A.
           N must be at least zero.
          ALPHA is COMPLEX*16
           On entry, ALPHA specifies the scalar alpha.
          X is COMPLEX*16 array of dimension at least
           ( 1 + ( m - 1 )*abs( INCX ) ).
           Before entry, the incremented array X must contain the m
           element vector x.
          INCX is INTEGER
           On entry, INCX specifies the increment for the elements of
           X. INCX must not be zero.
          Y is COMPLEX*16 array of dimension at least
           ( 1 + ( n - 1 )*abs( INCY ) ).
           Before entry, the incremented array Y must contain the n
           element vector y.
          INCY is INTEGER
           On entry, INCY specifies the increment for the elements of
           Y. INCY must not be zero.
          A is COMPLEX*16 array of DIMENSION ( LDA, n ).
           Before entry, the leading m by n part of the array A must
           contain the matrix of coefficients. On exit, A is
           overwritten by the updated matrix.
          LDA is INTEGER
           On entry, LDA specifies the first dimension of A as declared
           in the calling (sub) program. LDA must be at least
           max( 1, m ).
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
November 2011
Further Details:
  Level 2 Blas routine.

  -- Written on 22-October-1986.
     Jack Dongarra, Argonne National Lab.
     Jeremy Du Croz, Nag Central Office.
     Sven Hammarling, Nag Central Office.
     Richard Hanson, Sandia National Labs.

Definition at line 131 of file zgeru.f.

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