Implement beta

[mborland]

Closes: #648

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 95.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 98.6%. Comparing base (b4b08c2) to head (f61c588). Report is 7 commits behind head on develop.

Additional details and impacted files

[](https://app.codecov.io/gh/cppalliance/decimal/pull/649?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=cppalliance) ```diff @@ Coverage Diff @@ ## develop #649 +/- ## ========================================= - Coverage 98.7% 98.6% -0.0% ========================================= Files 219 221 +2 Lines 15717 15737 +20 Branches 1720 1722 +2 ========================================= + Hits 15497 15502 +5 - Misses 220 235 +15 ``` | [Files](https://app.codecov.io/gh/cppalliance/decimal/pull/649?dropdown=coverage&src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=cppalliance) | Coverage Δ | | |---|---|---| | [include/boost/decimal/cmath.hpp](https://app.codecov.io/gh/cppalliance/decimal/pull/649?src=pr&el=tree&filepath=include%2Fboost%2Fdecimal%2Fcmath.hpp&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=cppalliance#diff-aW5jbHVkZS9ib29zdC9kZWNpbWFsL2NtYXRoLmhwcA==) | `100.0% <ø> (ø)` | | | [test/test\_beta.cpp](https://app.codecov.io/gh/cppalliance/decimal/pull/649?src=pr&el=tree&filepath=test%2Ftest_beta.cpp&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=cppalliance#diff-dGVzdC90ZXN0X2JldGEuY3Bw) | `100.0% <100.0%> (ø)` | | | [include/boost/decimal/detail/cmath/beta.hpp](https://app.codecov.io/gh/cppalliance/decimal/pull/649?src=pr&el=tree&filepath=include%2Fboost%2Fdecimal%2Fdetail%2Fcmath%2Fbeta.hpp&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=cppalliance#diff-aW5jbHVkZS9ib29zdC9kZWNpbWFsL2RldGFpbC9jbWF0aC9iZXRhLmhwcA==) | `83.4% <83.4%> (ø)` | | ... and [19 files with indirect coverage changes](https://app.codecov.io/gh/cppalliance/decimal/pull/649/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=cppalliance) ------ [Continue to review full report in Codecov by Sentry](https://app.codecov.io/gh/cppalliance/decimal/pull/649?dropdown=coverage&src=pr&el=continue&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=cppalliance). > **Legend** - [Click here to learn more](https://docs.codecov.io/docs/codecov-delta?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=cppalliance) > `Δ = absolute (impact)`, `ø = not affected`, `? = missing data` > Powered by [Codecov](https://app.codecov.io/gh/cppalliance/decimal/pull/649?dropdown=coverage&src=pr&el=footer&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=cppalliance). Last update [b4b08c2...f61c588](https://app.codecov.io/gh/cppalliance/decimal/pull/649?dropdown=coverage&src=pr&el=lastupdated&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=cppalliance). Read the [comment docs](https://docs.codecov.io/docs/pull-request-comments?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=cppalliance).