NAG Library Manual, Mark 27
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NAG CL Interface Introduction
X02 (Machine) Chapter Contents
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NAG CL Interface
X02AKC (real_​smallest)

NAG Library Manual, Mark 27
Interfaces:  FL   CL   AD 
NAG CL Interface Introduction
X02 (Machine) Chapter Contents
X02 (Machine) Chapter Introduction
x02ak:  FL   CL   AD 

▸▿ Contents

© The Numerical Algorithms Group Ltd. 2019

1 Purpose

X02AKC returns the smallest positive floating-point number.

2 Specification

#include <nag.h>
double  X02AKC
The function may be called by the names: x02akc, nag_machine_real_smallest or nag_real_smallest_number.

3 Description

X02AKC is a constant defined in the C Header file.
X02AKC returns the smallest positive number in the model of floating-point arithmetic described in the X02 Chapter Introduction. The returned value is equal to b emin-1 , where b is the arithmetic base (see X02BHC) and emin is the minimum exponent (see X02BKC) in the model.

4 References

None.

5 Arguments

None.

6 Error Indicators and Warnings

None.

7 Accuracy

None.

8 Parallelism and Performance

X02AKC is not threaded in any implementation.

9 Further Comments

None.

10 Example

None.
NAG Library Manual, Mark 27
Interfaces:  FL   CL   AD 
NAG CL Interface Introduction
X02 (Machine) Chapter Contents
X02 (Machine) Chapter Introduction
x02ak:  FL   CL   AD 
© The Numerical Algorithms Group Ltd. 2019