System.SysUtils.TDoubleHelper.Frac
Delphi
property Frac: UInt64 read GetFrac write SetFrac;
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
| property | public | System.SysUtils.pas | System.SysUtils | TDoubleHelper |
Description
Represents the raw fraction part in the number.
Frac is represented on 52 bits.
Frac represents the UInt64 mantissa of the TDoubleHelper variable. This property provides direct access to the fraction part of the floating-point value.
The number 21, represented in binary, is 10101. After the normalization, the number looks like this: 1.0101 * 2^4. Frac is formed from the bits after the comma: 0101. The Frac is represented on 52 bits, so we fill the 0101 sequence with zeros up to 52 digits.