nag_zload (f16hbc) (PDF version)
f16 Chapter Contents
f16 Chapter Introduction
NAG C Library Manual

NAG Library Function Documentnag_zload (f16hbc)

1  Purpose

nag_zload (f16hbc) broadcasts a scalar into a complex vector.

2  Specification

 #include #include
 void nag_zload (Integer n, Complex alpha, Complex x[], Integer incx, NagError *fail)

3  Description

nag_zload (f16hbc) performs the operation
 $x ← α,α,…,αT ,$
where $x$ is an $n$-element complex vector and $\alpha$ is a complex scalar.

4  References

The BLAS Technical Forum Standard (2001) http://www.netlib.org/blas/blast-forum

5  Arguments

1:     nIntegerInput
On entry: $n$, the number of elements in $x$.
Constraint: ${\mathbf{n}}\ge 0$.
2:     alphaComplexInput
On entry: the scalar $\alpha$.
3:     x[$\mathit{dim}$]ComplexOutput
Note: the dimension, dim, of the array x must be at least $\mathrm{max}\phantom{\rule{0.125em}{0ex}}\left(1,1+\left({\mathbf{n}}-1\right)\left|{\mathbf{incx}}\right|\right)$.
On exit: the scalar $\alpha$ scattered with a stride of incx. Intermediate elements of x are unchanged.
4:     incxIntegerInput
On entry: the increment in the subscripts of x between successive elements of $x$.
Constraint: ${\mathbf{incx}}\ne 0$.
5:     failNagError *Input/Output
The NAG error argument (see Section 3.6 in the Essential Introduction).

6  Error Indicators and Warnings

NE_BAD_PARAM
On entry, argument $〈\mathit{\text{value}}〉$ had an illegal value.
NE_INT
On entry, ${\mathbf{incx}}=〈\mathit{\text{value}}〉$.
Constraint: ${\mathbf{incx}}\ne 0$.
On entry, ${\mathbf{n}}=〈\mathit{\text{value}}〉$.
Constraint: ${\mathbf{n}}\ge 0$.

Not applicable.

None.

9  Example

The scalar $0.5-0.3i$ is loaded into a vector of length $4$, stored in x with increment $2$ (${\mathbf{incx}}=2$).

9.1  Program Text

Program Text (f16hbce.c)

9.2  Program Data

Program Data (f16hbce.d)

9.3  Program Results

Program Results (f16hbce.r)

nag_zload (f16hbc) (PDF version)
f16 Chapter Contents
f16 Chapter Introduction
NAG C Library Manual