x02am returns the safe range of floating-point arithmetic.

Syntax

C#
public static double x02am()
Visual Basic
Public Shared Function x02am As Double
Visual C++
public:
static double x02am()
F#
static member x02am : unit -> float 

Return Value

x02am returns the safe range of floating-point arithmetic.

Description

x02am is defined to be the smallest positive model number z such that for any x in the range [z,1/z] the following can be computed without undue loss of accuracy, overflow, underflow or other error:
  • -x
  • 1/x
  • -1/x
  • x
  • logx
  • explogx
  • ylogx/logy for any y 

References

None.

Error Indicators and Warnings

None.

Accuracy

None.

Parallelism and Performance

None.

Further Comments

None.

Example

See Also