System.Math.IsZero

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Delphi

function IsZero(const A: Extended; Epsilon: Extended): Boolean;
function IsZero(const A: Double; Epsilon: Double): Boolean;
function IsZero(const A: Single; Epsilon: Single): Boolean;

C++

extern DELPHI_PACKAGE bool __fastcall IsZero(const System::Extended A, System::Extended Epsilon = 0.000000E+00)/* overload */;

Properties

Type	Visibility	Source	Unit	Parent
function	public	System.Math.pas System.Math.hpp	System.Math	System.Math

Description

Indicates when a floating-point variable or expression evaluates to zero, or very close to zero.

Use IsZero to test whether the value specified by AValue is zero, or differs from zero by at most Epsilon.

See Also

• SameValue

• IsInfinite

• Sign

• Mathematical Routines