feat: add math/base/special/acothf

[hrshya]

Resolves none .

Description

What is the purpose of this pull request?

This pull request:

• Adds the complete implementation for math/base/special/acothf .

Related Issues

Does this pull request have any related issues?

This pull request:

• progresses [RFC]: Add C implementations to base special math functions (tracking issue) #649 .

Questions

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No.

Other

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No.

Checklist

Please ensure the following tasks are completed before submitting this pull request.

• Read, understood, and followed the contributing guidelines.

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Coverage Report

Package	Statements	Branches	Functions	Lines
math/base/special/acothf	$\color{green}175/175$ $\color{green}+0.00%$	$\color{green}5/5$ $\color{green}+0.00%$	$\color{green}2/2$ $\color{green}+0.00%$	$\color{green}175/175$ $\color{green}+0.00%$

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