feat: add blas/base/ssymv

[aman-095]

Description

What is the purpose of this pull request?

This RFC proposes to add a routine to perform one of the matrix-vector operations y = alpha*A*x + beta*y where alpha and beta are scalars, x and y are n element vectors and A is an n by n symmetric matrix as defined in BLAS Level 2 routines. Specifically adding @stdlib/blas/base/ssymv is proposed.

Related Issues

Does this pull request have any related issues?

None.

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.

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@stdlib-js/reviewers

[kgryte]

@aman-095 I've done a partial review and refactor: benchmarks, docs, examples, and ssymv.js. You should pay particular attention to ssymv.js. I've leave it to you to apply to ndarray.js and to update the rest of the documentation and tests.

[aman-095]

Sure, Athan will review those and apply changes elsewhere. 

[kgryte]

@aman-095 One thing which is missing from the tests are column-major variants. All test fixtures atm are row-major.

[kgryte]

@aman-095 We also need to add assertion tests in order to get 100% code coverage.

[kgryte]

LGTM. Thanks, @aman-095.

For the other related PRs, you'll want to compute the diff between your last commit and the current state. That will help inform you as to what changes need to be propagated to ssbmv and others.

Note that I went ahead and added tests for edge cases, assertions, and column-major. Those will also need to be added to other PRs.