NAG Library Routine Document

f06bhf (drot2)

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Purpose

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Specification

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Description

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References

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Arguments

1:     $\mathbf{x}$ – Real (Kind=nag_wp)Input/Output

On entry: the value $x$, the $\left(1,1\right)$ element of the input matrix.

On exit: the transformed value $x$.

2:     $\mathbf{y}$ – Real (Kind=nag_wp)Input/Output

On entry: the value $y$, the $\left(1,2\right)$ or $\left(2,1\right)$ element of the input matrix.

On exit: the transformed value $y$.

3:     $\mathbf{z}$ – Real (Kind=nag_wp)Input/Output

On entry: the value $z$, the $\left(2,2\right)$ element of the input matrix.

On exit: the transformed value $z$.

4:     $\mathbf{c}$ – Real (Kind=nag_wp)Input

On entry: the value $c$, the cosine of the rotation.

5:     $\mathbf{s}$ – Real (Kind=nag_wp)Input

On entry: the value $s$, the sine of the rotation.

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Error Indicators and Warnings

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Accuracy

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Parallelism and Performance

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Further Comments

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Example