X02AMF (PDF version)
X02 Chapter Contents
X02 Chapter Introduction
NAG Library Manual

NAG Library Routine Document

X02AMF

Note:  before using this routine, please read the Users' Note for your implementation to check the interpretation of bold italicised terms and other implementation-dependent details.

+− Contents

    1  Purpose
    2  Specification
    3  Description
    4  References
    5  Parameters
    6  Error Indicators and Warnings
    7  Accuracy
    8  Further Comments
    9  Example

1  Purpose

X02AMF returns the safe range of floating-point arithmetic.

2  Specification

double precision FUNCTION X02AMF ()

3  Description

X02AMF 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:

4  References

None.

5  Parameters

None.

6  Error Indicators and Warnings

None.

7  Accuracy

None.

8  Further Comments

None.

9  Example

See Section 9 in X02AJF.
X02AMF (PDF version)
X02 Chapter Contents
X02 Chapter Introduction
NAG Library Manual
© The Numerical Algorithms Group Ltd, Oxford, UK. 2009