docs: replace manual for loop in examples

[hrshya]

Resolves none .

Description

What is the purpose of this pull request?

This pull request:

• replaces manual for loop in examples for math/base/special/vercos, math/base/special/versin and math/base/special/wrap packages.

Related Issues

Does this pull request have any related issues?

This pull request:

• resolves no related issues.

Questions

Any questions for reviewers of this pull request?

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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[stdlib-bot]

Coverage Report

Package	Statements	Branches	Functions	Lines
math/base/special/vercos	$\color{green}164/164$ $\color{green}+100.00\%$	$\color{green}5/5$ $\color{green}+100.00\%$	$\color{green}2/2$ $\color{green}+100.00\%$	$\color{green}164/164$ $\color{green}+100.00\%$
math/base/special/versin	$\color{green}164/164$ $\color{green}+100.00\%$	$\color{green}5/5$ $\color{green}+100.00\%$	$\color{green}2/2$ $\color{green}+100.00\%$	$\color{green}164/164$ $\color{green}+100.00\%$
math/base/special/wrap	$\color{green}236/236$ $\color{green}+100.00\%$	$\color{green}21/21$ $\color{green}+100.00\%$	$\color{green}2/2$ $\color{green}+100.00\%$	$\color{green}236/236$ $\color{green}+100.00\%$

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