nag_machine_real_smallest (x02ak) 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_{\min} - 1}

, where

b

is the arithmetic base (see nag_machine_model_base (x02bh)) and

e_{\min}

is the minimum exponent (see nag_machine_model_minexp (x02bk)) in the model.

References

None.

Parameters

Compulsory Input Parameters

None.

Optional Input Parameters

None.

Output Parameters

1: $result$ – double scalar: The result of the function.

Error Indicators and Warnings

None.

Accuracy

None.

Further Comments

None.

Example

See Example in nag_machine_precision (x02aj).

Open in the MATLAB editor: x02ak_example

function x02ak_example


fprintf('x02ak example results\n\n');

fprintf('the smallest positive model number = %22.15e\n', ...
        x02ak);

x02ak example results

the smallest positive model number = 2.225073858507201e-308

PDF version (NAG web site, 64-bit version, 64-bit version)

Chapter Contents

Chapter Introduction

NAG Toolbox