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[sys27]

Closes #896.

[codecov]

Codecov Report

❌ Patch coverage is 92.30769% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 99.06%. Comparing base (e42399e) to head (5f4d5de).
⚠️ Report is 2 commits behind head on dev.

Files with missing lines	Patch %	Lines
xFunc.Maths/Expressions/UnaryExpression.cs	0.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##              dev     #899      +/-   ##
==========================================
- Coverage   99.06%   99.06%   -0.01%     
==========================================
  Files         220      220              
  Lines        8691     8690       -1     
  Branches     1346     1347       +1     
==========================================
- Hits         8610     8609       -1     
  Misses         31       31              
  Partials       50       50              

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