Preserve branch-cut signs and special values in complex sqrt - #95

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@ec3a7ce113134d7a93b817d10a8272cb61118579, codecov/codecov-action@f32b3a3741e1053eb607407145bc9619351dc93b, dlang-community/setup-dlang@763d869b4d67e50c3ccd142108c8bca2da9df166. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

The `save-state` command is deprecated and will be disabled soon. Please upgrade to using Environment Files. For more information see: https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/

The `save-state` command is deprecated and will be disabled soon. Please upgrade to using Environment Files. For more information see: https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/