Provided by: liblapack-doc_3.3.1-1_all

**NAME**

LAPACK-3 - 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 'genuine' 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. LAPACK auxiliary routine (version 3.2) April 2011 IZMAX1(3lapack)