izmax1 (l) - Linux Manuals

izmax1: finds the index of the element whose real part has maximum absolute value

NAME

IZMAX1 - finds the index of the element whose real part has maximum absolute value

SYNOPSIS

INTEGER FUNCTION

IZMAX1( N, CX, INCX )

    

INTEGER INCX, N

    

COMPLEX*16 CX( * )

PURPOSE

IZMAX1 finds the index of the element whose real part has maximum absolute value. Based on IZAMAX from Level 1 BLAS.
The change is to use the aqgenuineaq absolute value.
Contributed by Nick Higham for use with ZLACON.

ARGUMENTS

N (input) INTEGER

The number of elements in the vector CX.

CX (input) COMPLEX*16 array, dimension (N)

The vector whose elements will be summed.

INCX (input) INTEGER

The spacing between successive values of CX. INCX >= 1.