| D0 | Deka.Native.Abstract, Deka.Native |
| D1 | Deka.Native.Abstract, Deka.Native |
| D2 | Deka.Native.Abstract, Deka.Native |
| D3 | Deka.Native.Abstract, Deka.Native |
| D4 | Deka.Native.Abstract, Deka.Native |
| D5 | Deka.Native.Abstract, Deka.Native |
| D6 | Deka.Native.Abstract, Deka.Native |
| D7 | Deka.Native.Abstract, Deka.Native |
| D8 | Deka.Native.Abstract, Deka.Native |
| D9 | Deka.Native.Abstract, Deka.Native |
| Dec | Deka.Dec |
| Decem | Deka.Native.Abstract, Deka.Native |
| decemListToAut | Deka.Native.Abstract |
| decemListToDecuple | Deka.Native.Abstract |
| decemListToInt | Deka.Native.Abstract |
| decemToChar | Deka.Native.Abstract |
| decemToInt | Deka.Native.Abstract |
| decemToNovem | Deka.Native.Abstract |
| Decimal128 | Deka.Context, Deka.Dec |
| Decimal32 | Deka.Context, Deka.Dec |
| Decimal64 | Deka.Context, Deka.Dec |
| DecimalPart | Deka.Native.FromString |
| decimalPart | Deka.Native.FromString |
| decToAbstract | Deka.Native.FromString, Deka.Native |
| Decuple | |
| 1 (Type/Class) | Deka.Native.Abstract, Deka.Native |
| 2 (Data Constructor) | Deka.Native.Abstract, Deka.Native |
| decupleToInt | Deka.Native.Abstract |
| decupleToString | Deka.Native.Abstract |
| Default | Deka.Context, Deka.Dec |
| Deka | Deka |
| DekaError | Deka |
| DekaT | |
| 1 (Type/Class) | Deka |
| 2 (Data Constructor) | Deka |
| Diagnostic | |
| 1 (Type/Class) | Deka.Native.Abstract, Deka.Native |
| 2 (Data Constructor) | Deka.Native.Abstract, Deka.Native |
| diagnostic | Deka.Native.Abstract, Deka.Native |
| digit | Deka.Native.FromString |
| digits | Deka.Native.FromString |
| divide | Deka.Dec |
| divideInteger | Deka.Dec |
| divisionByZero | Deka.Context, Deka.Dec |
| divisionImpossible | Deka.Context, Deka.Dec |
| divisionUndefined | Deka.Context, Deka.Dec |