System.ExpMinus1
Delphi
function ExpMinus1(const X: Extended): Extended;
C++
extern DELPHI_PACKAGE Extended __fastcall ExpMinus1(const Extended X);
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
| function | public | System.pas System.hpp |
System | System |
Description
Returns eX-1.
ExpMinus1 returns the eX-1, where e is Euler's constant and X is the given parameter.
On x86, this function is based on the F2XM1 instruction.
Writeln(ExpMinus1(1.0)); // Displays 1.71828182845905E+0000