NAG Library Routine Document

F06DBF

+− Contents

1 Purpose

9 Example

F06DBF broadcasts an integer scalar into an integer vector.

SUBROUTINE F06DBF (

INTEGER

N, CON, X(*), INCX

F06DBF performs the operation

x \leftarrow {(α, α, \dots, α)}^{T},

where

x

is an

n

-element integer vector scattered with stride INCX.

None.

1: N – INTEGERInput: On entry: $n$ , the number of elements in $x$ .
2: CON – INTEGERInput: On entry: the scalar $α$ .
3: X( $*$ ) – INTEGER arrayOutput: Note: the dimension of the array X must be at least $\max (1, 1 + (N - 1) \times INCX)$ .
On exit: the vector $x$ . $x_{i}$ will be stored in $X (1 + (i - 1) \times INCX)$ , for $i = 1, 2, \dots, N$ .
Intermediate elements of X are unchanged.
4: INCX – INTEGERInput: On entry: the increment in the subscripts of X between successive elements of $x$ .
Constraint: $INCX > 0$ .