The NumericClass(x) function returns the class of x represented as a type. The class of x is described by a Maple type that recognizes

- the computation environment, and

- the numerical type of x.

If x is complex, then NumericClass(x) returns as narrowly constrained a type as possible to recognize x. To obtain precise information about the real and imaginary part of x separately, use NumericClass(Re(x)) and NumericClass(Im(x)).

The NumericClass command is thread-safe as of Maple 15.

For more information on thread safety, see index/threadsafe.

$\mathrm{NumericClass}\left(0\right)$

$\mathrm{rational}\wedge \mathrm{poszero}$

$\mathrm{NumericClass}\left(2.3\right)$

$\mathrm{sfloat}\wedge \mathrm{positive}\wedge \mathrm{numeric}$

$\mathrm{NumericClass}\left(\mathrm{\infty }\right)$

$\mathrm{extended\_rational}\wedge \mathrm{positive}\wedge \mathrm{\infty }$

$x≔3-2\mathrm{I}$

$x≔3-2\mathrm{I}$

$\mathrm{NumericClass}\left(x\right)$

$\mathrm{nonreal}\left(\mathrm{posint}\vee \mathrm{negint}\right)$

$\mathrm{NumericClass}\left(\mathrm{\Re }\left(x\right)\right)$

$\mathrm{posint}$

$\mathrm{NumericClass}\left(\mathrm{\Im }\left(x\right)\right)$

$\mathrm{negint}$

$\mathrm{NumericClass}\left(2\mathrm{I}\right)$

$\mathrm{imaginary}\left(\mathrm{posint}\right)$

$\mathrm{NumericClass}\left(\mathrm{HFloat}\left(-4.5\right)\right)$

${\mathrm{float}}_8\wedge \mathrm{negative}\wedge \mathrm{numeric}$

$\mathrm{NumericClass}\left(\mathrm{HFloat}\left(-3+5\mathrm{I}\right)\right)$

$\mathrm{nonreal}\left(\left({\mathrm{float}}_8\wedge \mathrm{negative}\wedge \mathrm{numeric}\right)\vee \left({\mathrm{float}}_8\wedge \mathrm{positive}\wedge \mathrm{numeric}\right)\right)$