Mantissa
For a Real Number 
, the mantissa is defined as the Positive fractional part 
,where 
denotes the Floor Function.
- Deltoid
- Deltoidal Hexecontahedron
- Deltoidal Icositetrahedron
- Deltoid Caustic
- Deltoid Evolute
- Deltoid Involute
- Deltoid Pedal Curve
- Deltoid Radial Curve
- de Mere's Problem
- Demlo Number
- de Moivre-Laplace Theorem
- de Moivre Number
- de Moivre's Identity
- de Moivre's Quintic
- de Morgan's and Bertrand's Test
- de Morgan's Duality Law
- de Morgan's Laws
- Dendrite Fractal
- Denjoy Integral
- Denominator
- Dense
- Density
- Density (Polygon)
- Density (Sequence)
- Denumerable Set