SinusSoftware 

This package contains the following sorting algorithms: Bubblesort, Selectionsort, Insertionsort, Heapsort, Mergesort, Countingsort, Shellsort, Radixsort, SlowSort, IntroSort, Timsort, Shakersort, QuickSort,... More information

This package contains the calculation of Sunday and public holidays in germany. Example: bool value = datetime.IsSundayOrPublicHoliday()