RFC: add support for computing the hyperbolic secant (sech)

[kgryte]

Checklist

Please ensure the following tasks are completed before submitting a feature request.

• [x] Read and understood the Code of Conduct.
• [x] Searched for existing issues and pull requests.
• [x] The issue name begins with RFC:.

Description

Description of the feature request.

This RFC proposes adding support for computing the hyperbolic secant. The initial implementation is straightforward:

return 1.0 / cosh( x );

Package: @stdlib/math/base/special/sech Alias: base.sech

Related Issues

Does this feature request have any related issues?

No.

Questions

Any questions for reviewers?

No.

Other

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

Reference implementation:

• Julia

[Hritik1503]

I am interested to work on this issue under Quine. So please assign me this task to me.

[MSP20086]

@Planeshifter @kgryte @Pranavchiku I would like to solve this issue. I am thinking to add C-implementation as well. I recently had taken issue #226 which was pretty similar. i can implement in C there also.

[Pranavchiku]

Go ahead.