HP MLIB User's Guide Vol. 1 7th Ed.

Chapter 2 Basic Vector Operations 51

Index of minimum element of vector ISMIN/IDMIN/IIMIN

Name ISMIN/IDMIN/IIMIN

Index of minimum element of vector

Purpose Given a real or integer vector x of length n, these subprograms determine the

index of minimum element of the vector. Speciﬁcally, the subprograms

determine the smallest index i such that

The vector can be stored in a one-dimensional array or in either a row or a

column of a two-dimensional array.

Usage VECLIB:

INTEGER*4 i, ISMIN, n, incx

REAL*4 x(lenx)

i = ISMIN(n, x, incx)

INTEGER*4 i, IDMIN, n, incx

REAL*8 x(lenx)

i = IDMIN(n, x, incx)

INTEGER*4 i, IIMIN, n, incx, x(lenx)

i = IIMIN(n, x, incx)

VECLIB8:

INTEGER*8 i, ISMIN, n, incx

REAL*4 x(lenx)

i = ISMIN(n, x, incx)

INTEGER*8 i, ISMIN, n, incx

REAL*8 x(lenx)

i = ISMIN(n, x, incx)

INTEGER*8 i, IIMIN, n, incx, x(lenx)

i = IIMIN(n, x, incx)

Input n Number of elements of vector x to be used. If n ≤ 0, the

subprograms do not reference x.

x Array of length lenx = (n−1)×|incx|+1 containing the

n-vector x.

incx Increment for the array x. x is stored forward in array x

with increment |incx|; that is, x

is stored in

x((i−1)×|incx|+1).

min x

: j 12… n,, ,=()=