naginterfaces.library.machine.real_​largest

naginterfaces.library.machine.real_largest()

real_largest returns the largest positive floating-point number.

For full information please refer to the NAG Library document for x02al

https://www.nag.com/numeric/nl/nagdoc_29.3/flhtml/x02/x02alf.html

Returns

huge_nagfloat

The largest positive floating-point number.

Notes

real_largest returns the largest positive number in the model of floating-point arithmetic described in the X02 Introduction. The returned value is equal to $(1-b^{-p})\times b^{e_{\text{max}}}$, where $b$ is the arithmetic base (see model_base()) and $e_{\text{max}}$ is the maximum exponent (see model_maxexp()) in the model.