naginterfaces.library.ieee.create_​infinity

naginterfaces.library.ieee.create_infinity(isign)

create_infinity creates a signed infinite value.

For full information please refer to the NAG Library document for x07ba

https://support.nag.com/numeric/nl/nagdoc_30.3/flhtml/x07/x07baf.html

Parameters

isignint

Determines the sign of the infinity to be created.

If $isign$ is greater than or equal to $0$, a positive infinity is returned, otherwise a negative infinity is returned.

Returns

xfloat

The required infinite value.

Notes

create_infinity sets $x$ to be positive or negative infinity.

References

IEEE, 2008, Standard for Floating-Point Arithmetic (IEEE Standard 754-2008), IEEE, New York.