NAG FL Interface
f06fbf (dload)

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FL Specification Language:

1 Purpose

f06fbf broadcasts a real scalar into a real vector.

2 Specification

Fortran Interface
Subroutine f06fbf ( n, con, x, incx)
Integer, Intent (In) :: n, incx
Real (Kind=nag_wp), Intent (In) :: con
Real (Kind=nag_wp), Intent (Inout) :: x(*)
C Header Interface
#include <nag.h>
void  f06fbf_ (const Integer *n, const double *con, double x[], const Integer *incx)
The routine may be called by the names f06fbf or nagf_blas_dload.

3 Description

f06fbf performs the operation
where x is an n-element real vector.

4 References


5 Arguments

1: n Integer Input
On entry: n, the number of elements in x.
2: con Real (Kind=nag_wp) Input
On entry: the scalar α.
3: x(*) Real (Kind=nag_wp) array Input/Output
Note: the dimension of the array x must be at least max(1, 1+(n-1) ×incx ) .
On entry: if |incx|1, intermediate elements of x may contain values and will not be referenced; the other elements will be overwritten and need not be set.
On exit: the elements xi of the vector x will be stored in x(1+(i-1)×incx), for i=1,2,,n.
Intermediate elements of x are unchanged.
4: incx Integer Input
On entry: the increment in the subscripts of x between successive elements of x.
Constraint: incx>0.

6 Error Indicators and Warnings


7 Accuracy

Not applicable.

8 Parallelism and Performance

f06fbf is not threaded in any implementation.

9 Further Comments


10 Example