X02 Chapter Contents
X02 Chapter Introduction
NAG Library Manual

# NAG Library Routine DocumentX02AKF

Note:  before using this routine, please read the Users' Note for your implementation to check the interpretation of bold italicised terms and other implementation-dependent details.

## 1  Purpose

X02AKF returns the smallest positive floating point number.

## 2  Specification

 FUNCTION X02AKF ( )
 REAL (KIND=nag_wp) X02AKF

## 3  Description

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.

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