feat: add lapack/base/dlartg

[aayush0325]

Description

What is the purpose of this pull request?

This pull request:

• adds lapack/base/dlartg

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No.

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• Read, understood, and followed the contributing guidelines.

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[stdlib-bot]

Coverage Report

Package	Statements	Branches	Functions	Lines
lapack/base/dlartg	$\color{green}356/356$ $\color{green}+100.00\%$	$\color{green}17/17$ $\color{green}+100.00\%$	$\color{green}3/3$ $\color{green}+100.00\%$	$\color{green}356/356$ $\color{green}+100.00\%$

The above coverage report was generated for the changes in this PR.

[kgryte]

@aayush0325 I'm a little confused. What is meant by a "two-dimensional" vector? Vectors are, by definition, one dimensional. Are you meaning a column matrix?

[kgryte]

Or maybe you are intending a two-element vector?

[aayush0325]

i mean a column matrix here

[ F ]
[ G ]

this is what im referring to as a 2 dimensional vector, i was a little confused here as well so i decided to go with this.

[aayush0325]

let me know if i should use something else here please i don't really know what else to use