nag_real_largest_number (X02ALC) (PDF version)
x02 Chapter Contents
x02 Chapter Introduction
NAG C Library Manual

NAG Library Function Document

nag_real_largest_number (X02ALC)

+ Contents

    1  Purpose
    7  Accuracy
    9  Example

1  Purpose

nag_real_largest_number (X02ALC) returns the largest positive floating point number.

2  Specification

#include <nag.h>
#include <nagx02.h>
double  nag_real_largest_number

3  Description

nag_real_largest_number (X02ALC) is a constant defined in the C Header file.
nag_real_largest_number (X02ALC) returns the largest positive number in the model of floating point arithmetic described in the x02 Chapter Introduction. The returned value is equal to 1- b-p × bemax , where b is the arithmetic base (see nag_real_base (X02BHC)) and emax  is the maximum exponent (see nag_real_max_exponent (X02BLC)) in the model.

4  References

None.

5  Arguments

None.

6  Error Indicators and Warnings

None.

7  Accuracy

None.

8  Further Comments

None.

9  Example

None.

nag_real_largest_number (X02ALC) (PDF version)
x02 Chapter Contents
x02 Chapter Introduction
NAG C Library Manual

© The Numerical Algorithms Group Ltd, Oxford, UK. 2012