Ошибка в power_natural

[codecov[bot]]

Codecov Report

Base: 100.00% // Head: 100.00% // No change to project coverage :thumbsup:

Coverage data is based on head (50389b5) compared to base (bb3df9e). Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #1139 +/- ## ========================================= Coverage 100.00% 100.00% ========================================= Files 102 102 Lines 11627 11628 +1 ========================================= + Hits 11627 11628 +1 ``` | [Impacted Files](https://codecov.io/gh/galushin/saga/pull/1139?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Pavel+Galushin) | Coverage Δ | | |---|---|---| | [include/saga/math.hpp](https://codecov.io/gh/galushin/saga/pull/1139/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Pavel+Galushin#diff-aW5jbHVkZS9zYWdhL21hdGguaHBw) | `100.00% <100.00%> (ø)` | | | [tests/ProjectEuler/projectEuler.cpp](https://codecov.io/gh/galushin/saga/pull/1139/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Pavel+Galushin#diff-dGVzdHMvUHJvamVjdEV1bGVyL3Byb2plY3RFdWxlci5jcHA=) | `100.00% <100.00%> (ø)` | | | [tests/math.cpp](https://codecov.io/gh/galushin/saga/pull/1139/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Pavel+Galushin#diff-dGVzdHMvbWF0aC5jcHA=) | `100.00% <100.00%> (ø)` | | Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Pavel+Galushin). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Pavel+Galushin)

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