Sunlit Design > The Sun API > Documentation > User Guide
+ Introduction
+ Using the Functions
- User Guide
- Foundational Concepts
- Time Values
- How Time values are represented
- How SDY values are calculated.
- Designing Sundials
- Units
- Annual Solar Events
- Trigonometry
- Version, Copyri.php" and Miscellaneous
- Function Accuracy
- XML Strings
+ Function Reference
+ Constants
User Guide
See the following User Guide topics:Foundational Concepts, Time Values, How Time values are represented, Modified Julian Day, Solar Day of Year, Universal Time Day, Clock Time Day, Designing Sundials, Unit and Coordinate Conversion, Finding Annual Solar Features, Trigonometry Functions using Degrees, Version, Copyright and Miscellaneous, Function Accuracy, XML Strings