- Module Interpolations  
- Add cubic/spline interpolations 
- Module Interpolations  
- Add cubic/spline interpolations 
- Module Sine half-wave  
- Replace by full period wave and simplify scan code 
- Module Sine half-wave  
- Replace by full period wave and simplify scan code 
- Module Wave banks.  
- Explain categorization 
- Module Wave banks.  
- Explain categorization