Keyword : Constants and utilities

X01AAF	Provides the mathematical constant $π$
X01ABF	Provides the mathematical constant $γ$ (Euler's constant)
X02AHF	The largest permissible argument for sin and cos
X02AJF	The machine precision
X02AKF	The smallest positive model number
X02ALF	The largest positive model number
X02AMF	The safe range parameter
X02ANF	The safe range parameter for complex floating point arithmetic
X02BBF	The largest representable integer
X02BEF	The maximum number of decimal digits that can be represented
X02BHF	The floating point model parameter, $b$
X02BJF	The floating point model parameter, $p$
X02BKF	The floating point model parameter $e_{\min}$
X02BLF	The floating point model parameter $e_{\max}$
X03AAF	Real inner product added to initial value, basic/additional precision
X03ABF	Complex inner product added to initial value, basic/additional precision
X04AAF	Return or set unit number for error messages
X04ABF	Return or set unit number for advisory messages
X04ACF	Open unit number for reading, writing or appending, and associate unit with named file
X04ADF	Close file associated with given unit number
X04BAF	Write formatted record to external file
X04BBF	Read formatted record from external file
X05AAF	Return date and time as an array of integers
X05ABF	Convert array of integers representing date and time to character string
X05ACF	Compare two character strings representing date and time
X05BAF	Return the CPU time
X07AAF	Determines whether its argument has a finite value
X07ABF	Determines whether its argument is a NaN (Not A Number)
X07BAF	Creates a signed infinite value.
X07BBF	Creates a NaN (Not A Number)
X07CAF	Gets current behaviour of floating point exceptions
X07CBF	Sets behaviour of floating point exceptions

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Keyword Index for the NAG Library Manual

NAG Library Manual