NAG Library Routine Document

x02alf 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}) \times b^{e_{\max}}

, where

b

is the arithmetic base (see x02bhf) and

e_{\max}

is the maximum exponent (see x02blf) in the model.

4

References

None.

5

Arguments

None.

6

Error Indicators and Warnings

None.

7

Accuracy

None.

8

Parallelism and Performance

x02alf is not threaded in any implementation.

9

Further Comments

None.

10

Example

See Section 10 in x02ajf.

NAG Library Manual, Mark 26

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X02 (machine) Chapter Contents

X02 (machine) Chapter Introduction

NAG Library Routine Document

x02alf (real_largest)

▸▿ Contents

1 Purpose

2 Specification

3 Description

4 References

5 Arguments

6 Error Indicators and Warnings

7 Accuracy

8 Parallelism and Performance

9 Further Comments

10 Example

1

Purpose

2

Specification

3

Description

4

References

5

Arguments

6

Error Indicators and Warnings

7

Accuracy

8

Parallelism and Performance

9

Further Comments

10

Example