System.Double
From RAD Studio API Documentation
Delphi
type Double = { built-in type };
C++
typedef double Double; // 8 byte real
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
type typedef |
public | System.pas sysmac.h |
System | System |
Description
Represents a double-precision floating-point value.
Use this floating-point format for high accuracy operations. For low accuracy operations, use single-precision floating-point values (Single). The computational time will decrease as the precision lessens. For very high accuracy operations, use Extended.
The size of Double is 8 bytes.