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This PR completes the comprehensive enhancement of Document 03 Trigonometric Identities and includes critical LaTeX rendering fixes across all trigonometric documentation.

Content Enhancements

  • Complete TODO Integration: Successfully moved all TODO content into proper identity sections with comprehensive coverage
  • Geometric Derivations: Added educational unit circle derivations for sine, cosine, and tangent addition formulas
  • Comprehensive Identity Coverage: Integrated co-function, periodicity, quadrant, and inverse function identities
  • Advanced Formulas: Added double-angle and half-angle identities with worked examples
  • Educational Cross-References: Integrated 5 strategic MathWorld links for advanced learning
  • Complete Examples Set: Added 4 comprehensive worked examples covering both addition and difference formulas

Technical Improvements

  • LaTeX Rendering Fixes: Resolved KaTeX compatibility issues including \arccot function notation, inequality symbols, and missing mathematical ranges
  • Unicode Standardization: Converted all degree symbols from Unicode ° to LaTeX ^\circ across all three trigonometric documents
  • Content Organization: Fixed duplicate content placement and ensured proper document structure
  • Documentation Build: All mathematical expressions now render properly in KaTeX 0.16.8
  • Index Update: Updated main documentation index to reflect completion of trigonometric enhancements

Testing & Validation

  • ✅ Documentation builds successfully with no errors
  • ✅ All mathematical expressions render correctly in multiple themes
  • ✅ LaTeX notation consistent throughout all documents
  • ✅ Educational accessibility verified with geometric approach derivations
  • ✅ Cross-references validated and functional
  • ✅ Comprehensive examples demonstrate both addition and subtraction formulas

Files Modified

  • docs/src/Trigonometry/01 Angles & Measurements.md: Unicode degree symbol standardization
  • docs/src/Trigonometry/02 Trigonometric Functions.md: Unicode degree symbol standardization
  • docs/src/Trigonometry/03 Trigonometric Identities.md: Complete enhancement with comprehensive content, rendering fixes, and proper example organization
  • docs/src/index.md: Updated to reflect completion of trigonometric documentation

Key Commits

  1. Main Enhancement: Complete trigonometric identities integration with LaTeX fixes
  2. Final Fix: Proper placement of cosine difference formula example and duplicate content removal

This enhancement transforms Document 03 from a basic outline into a comprehensive educational resource while ensuring optimal technical rendering across all trigonometric documentation.

… LaTeX rendering fixes

- Complete enhancement of Document 03 Trigonometric Identities with integrated TODO content
- Add comprehensive geometric derivations for addition formulas using unit circle approach
- Integrate co-function, periodicity, quadrant, and inverse function identity sections
- Add double-angle and half-angle formulas with worked examples
- Include educational cross-references to MathWorld for advanced learning
- Standardize all degree symbols from Unicode ° to LaTeX ^\circ for KaTeX compatibility
- Fix LaTeX rendering issues: \arccot function notation, inequality symbols, missing ranges
- Apply Unicode symbol standardization across all three trigonometric documents
- Update index.md to reflect completion of trigonometric documentation enhancement
- Ensure all mathematical expressions render properly in documentation build system
- Add Example 4 demonstrating cosine difference formula: cos(15°) = cos(45° - 30°)
- Remove duplicate content that was incorrectly placed at top of document
- Complete the Examples of Addition Formulas section with both addition and subtraction cases
- Ensure comprehensive coverage of trigonometric addition/difference formulas with worked examples
@AronT-TLV AronT-TLV merged commit 4698729 into main Aug 14, 2025
3 checks passed
@AronT-TLV AronT-TLV deleted the feature/enhance-trigonometry-03-identities branch August 15, 2025 10:37
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2 participants