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---
:name: izmax1
:md5sum: 9594df1850d6464cd15f4e4b7161a5fa
:category: :function
:type: integer
:arguments:
- n:
:type: integer
:intent: input
- cx:
:type: doublecomplex
:intent: input
:dims:
- n
- incx:
:type: integer
:intent: input
:substitutions: {}
:fortran_help: " INTEGER FUNCTION IZMAX1( N, CX, INCX )\n\n\
* Purpose\n\
* =======\n\
*\n\
* IZMAX1 finds the index of the element whose real part has maximum\n\
* absolute value.\n\
*\n\
* Based on IZAMAX from Level 1 BLAS.\n\
* The change is to use the 'genuine' absolute value.\n\
*\n\
* Contributed by Nick Higham for use with ZLACON.\n\
*\n\n\
* Arguments\n\
* =========\n\
*\n\
* N (input) INTEGER\n\
* The number of elements in the vector CX.\n\
*\n\
* CX (input) COMPLEX*16 array, dimension (N)\n\
* The vector whose elements will be summed.\n\
*\n\
* INCX (input) INTEGER\n\
* The spacing between successive values of CX. INCX >= 1.\n\
*\n\n\
* =====================================================================\n\
*\n\
* .. Local Scalars ..\n INTEGER I, IX\n DOUBLE PRECISION SMAX\n COMPLEX*16 ZDUM\n\
* ..\n\
* .. Intrinsic Functions ..\n INTRINSIC ABS\n\
* ..\n\
* .. Statement Functions ..\n DOUBLE PRECISION CABS1\n\
* ..\n\
* .. Statement Function definitions ..\n\
*\n\
* NEXT LINE IS THE ONLY MODIFICATION.\n CABS1( ZDUM ) = ABS( ZDUM )\n\
* ..\n"
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