Note: the dimension of the array
X
must be at least
max1,
1+N-1
×INCX
.
On entry: the original vector
x.
If INCX>0,
xi must be stored in X1+i-1×INCX, for i=1,2,…,N.
If INCX≤0,
xi must be stored in X1+N-i×INCX, for i=1,2,…,N.
On exit: the original vector
y stored in the array elements used to store the original vector
x. Intermediate elements of
X are unchanged.