man izmax1 (Fonctions bibliothèques) - find the index of the element whose real part has maximum absolute value
NAME
IZMAX1 - find 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.