naginterfaces.library.machine.real_​smallest

naginterfaces.library.machine.real_smallest()

real_smallest returns the smallest positive floating-point number.

For full information please refer to the NAG Library document for x02ak

https://support.nag.com/numeric/nl/nagdoc_30/flhtml/x02/x02akf.html

Returns

tiny_nagfloat

The smallest positive floating-point number.

Notes

real_smallest returns the smallest positive number in the model of floating-point arithmetic described in the X02 Introduction. The returned value is equal to $b^{e_{\text{min}}-1}$, where $b$ is the arithmetic base (see model_base()) and $e_{\text{min}}$ is the minimum exponent (see model_minexp()) in the model.