feat: add math/base/special/polevl for polynomial evaluation

[Om-A-osc]

Resolves N/A.

Description

What is the purpose of this pull request?

This pull request adds a new polevl utility to @stdlib/math/base/special for evaluating polynomials using Horner’s rule.

Specifically, this pull request:

• Adds a JavaScript implementation of polevl(x, coef, N)
• Adds a native C implementation with Node.js bindings for improved performance
• Includes unit tests for both JavaScript and native implementations
• Adds benchmarks for JavaScript and native implementations
• Provides usage examples in JavaScript and C
• Adds TypeScript type definitions and REPL documentation

The implementation follows existing stdlib conventions and provides both portability (JavaScript) and performance (native C).

Related Issues

Does this pull request have any related issues?

This pull request has no related issues.

Questions

Any questions for reviewers of this pull request?

No.

Other

Any other information relevant to this pull request? This may include screenshots, references, and/or implementation notes.

No.

Checklist

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

• Read, understood, and followed the contributing guidelines

AI Assistance

When authoring the changes proposed in this PR, did you use any kind of AI assistance?

• Yes
• No

Disclosure

N/A.

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@stdlib-js/reviewers

[stdlib-bot]

Coverage Report

Package	Statements	Branches	Functions	Lines
math/base/special/polevl	$\color{green}164/164$ $\color{green}+100.00%$	$\color{green}17/17$ $\color{green}+100.00%$	$\color{green}2/2$ $\color{green}+100.00%$	$\color{green}164/164$ $\color{green}+100.00%$

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

[kgryte]

@Om-A-osc Thank you for opening this PR; however, the functionality you are wanting to add already exists within the project. See https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/math/base/tools/evalpoly.

And while this PR also includes a C API, we are not interested in adding this functionality atm, as there isn't a clear need.

As such, I am going to go ahead and close this PR.