NAME izamax - Return the index of the element with largest abso- lute value. SYNOPSIS INTEGER FUNCTION IZAMAX (N, X, INCX) INTEGER INCX, N COMPLEX*16 X( * ) #include <sunperf.h> int izamax(int n, doublecomplex *zx, int incx) ; PURPOSE IZAMAX - Return the index of the element in x with largest absolute value where x is an n-vector and absolute value is defined as the sum of the absolute value of the real part and the absolute value of the imaginary part. PARAMETERS N - INTEGER. On entry, N specifies the number of elements in the vector. N must be at least one for the sub- routine to have any visible effect. Unchanged on exit. X - COMPLEX*16 array of DIMENSION at least ( 1 + ( m - 1 )*abs( INCX ) ). On entry, the incremented array X must contain the vector x. Unchanged on exit. INCX - INTEGER. On entry, INCX specifies the increment for the elements of X. INCX must be positive. Unchanged on exit.
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