X02AJC (precision) : NAG Library CL Interface, Mark 27

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NAG Library Manual, Mark 27

Interfaces: FL CL AD

NAG CL Interface Introduction

X02 (Machine) Chapter Contents

X02 (Machine) Chapter Introduction

x02aj: FL CL AD

▸▿ 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

X02AJC returns machine precision, computed as

ε = \frac{1}{2} \times b^{1 - p}

, where

b

is the arithmetic base (see X02BHC) and

p

is the number of significant base-

b

digits (see X02BJC).

It is important to note that the definition of

ε

here differs from that in ISO Fortran 95 (1997).

NAG CL Interface
X02AJC (precision)

▸▿ 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

NAG CL InterfaceX02AJC (precision)

▸▿ 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

NAG CL Interface
X02AJC (precision)