| database | Number.SI.Unit |
| databaseRead | Number.SI.Unit |
| databaseShow | Number.SI.Unit |
| dataRate | Number.SI.Unit |
| day | |
| 1 (Function) | Number.DimensionTerm.SI |
| 2 (Function) | Number.SI |
| deca | Number.SI.Unit, Number.DimensionTerm.SI |
| deci | Number.SI.Unit, Number.DimensionTerm.SI |
| decompose | Number.Physical.UnitDatabase |
| decomposeVarPositional | Algebra.IntegralDomain |
| decomposeVarPositionalInf | Algebra.IntegralDomain |
| decons | Number.GaloisField2p32m5 |
| decreaseExp | Number.Positional |
| decreaseExpFP | Number.Positional |
| defltBase | Number.Positional.Check |
| defltBaseExp | Number.Positional.Check |
| defltBaseRoot | Number.Positional.Check |
| defltDenominator | Number.FixedPoint.Check |
| defltIsZero | Algebra.ZeroTestable |
| defltNorm | Algebra.NormedSpace.Euclidean |
| defltPow | Number.Complex |
| defltShow | |
| 1 (Function) | Number.FixedPoint.Check |
| 2 (Function) | Number.Positional.Check |
| defScale | Number.Physical.Show |
| defScaleIx | Number.Physical.UnitDatabase |
| deg180 | Number.SI.Unit |
| denominator | |
| 1 (Function) | Number.Ratio, NumericPrelude, MyPrelude |
| 2 (Function) | Number.FixedPoint.Check |
| derivedLog | MathObj.PowerSeries |
| diagonal | MathObj.Matrix |
| diffComp | MathObj.PowerSeries.Mean |
| differentiate | |
| 1 (Function) | Algebra.Differential |
| 2 (Function) | MathObj.Polynomial |
| 3 (Function) | MathObj.PowerSeries |
| differentiate0 | MathObj.PowerSeries2 |
| differentiate1 | MathObj.PowerSeries2 |
| Digit | Number.Positional |
| dilate | MathObj.Polynomial |
| Dimension | |
| 1 (Type/Class) | Number.SI.Unit |
| 2 (Type/Class) | MathObj.Matrix |
| dimension | |
| 1 (Function) | Algebra.ModuleBasis |
| 2 (Function) | MathObj.Matrix |
| diophantine | Algebra.PrincipalIdealDomain |
| diophantineMin | Algebra.PrincipalIdealDomain |
| diophantineMulti | Algebra.PrincipalIdealDomain |
| distance | Number.SI.Unit |
| distances | Number.Physical.UnitDatabase |
| distLE | Number.Physical.UnitDatabase |
| Div | Number.OccasionallyScalarExpression |
| div | |
| 1 (Function) | Algebra.IntegralDomain, NumericPrelude, MyPrelude |
| 2 (Function) | MathObj.LaurentPolynomial |
| divExample | MathObj.LaurentPolynomial |
| divide | |
| 1 (Function) | MathObj.PowerSeries |
| 2 (Function) | MathObj.PowerSeries2 |
| 3 (Function) | Number.FixedPoint |
| 4 (Function) | Number.ResidueClass |
| 5 (Function) | Number.Positional |
| divideMaybe | Number.ResidueClass |
| divides | Algebra.IntegralDomain, NumericPrelude, MyPrelude |
| divideStripZero | MathObj.PowerSeries |
| divInt | Number.Positional |
| divIntMant | Number.Positional |
| divIntMantInf | Number.Positional |
| divMant | Number.Positional |
| divMantSlow | Number.Positional |
| divMod | |
| 1 (Function) | Algebra.IntegralDomain, NumericPrelude, MyPrelude |
| 2 (Function) | MathObj.Polynomial |
| 3 (Function) | MathObj.PowerSeries |
| divModRev | MathObj.Polynomial |
| divModZero | Algebra.IntegralDomain |
| divOneFlip | MathObj.PowerSum |
| divToScalar | Number.DimensionTerm |
| dn | Algebra.Lattice |
| domain | MathObj.Permutation |
| Double | |
| 1 (Type/Class) | NumericPrelude, MyPrelude |
| 2 (Type/Class) | Number.NonNegative |
| doubleRecip | Algebra.DimensionTerm |
| drop | PreludeBase, MyPrelude |
| dropWhile | PreludeBase, MyPrelude |