# NAG FL Interfacex02akf (real_​smallest)

## ▸▿ Contents

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## 1Purpose

x02akf returns the smallest positive floating-point number.

## 2Specification

Fortran Interface
 Function x02akf ( )
 Real (Kind=nag_wp) :: x02akf
C Header Interface
#include <nag.h>
 double x02akf_ ()
The routine may be called by the names x02akf or nagf_machine_real_smallest.

## 3Description

x02akf returns the smallest positive number in the model of floating-point arithmetic described in the X02 Chapter Introduction. The returned value is equal to ${b}^{{e}_{\mathrm{min}}-1}$, where $b$ is the arithmetic base (see x02bhf) and ${e}_{\mathrm{min}}$ is the minimum exponent (see x02bkf) in the model.

None.

None.

None.

Not applicable.

## 8Parallelism and Performance

Background information to multithreading can be found in the Multithreading documentation.
x02akf is not threaded in any implementation.

None.

See x02ajf.