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A.5 The Numerics Packages
1
The library package Numerics is the parent of
several child units that provide facilities for mathematical computation.
One child, the generic package Generic_Elementary_Functions, is defined
in
A.5.1, together with nongeneric equivalents;
two others, the package Float_Random and the generic package Discrete_Random,
are defined in
A.5.2. Additional (optional)
children are defined in
Annex G, ``
Numerics''.
Static Semantics
2/1
This paragraph was deleted.
3
package Ada.Numerics is
pragma Pure(Numerics);
Argument_Error : exception;
Pi : constant :=
3.14159_26535_89793_23846_26433_83279_50288_41971_69399_37511;
e : constant :=
2.71828_18284_59045_23536_02874_71352_66249_77572_47093_69996;
end Ada.Numerics;
4
The Argument_Error exception is raised by a subprogram
in a child unit of Numerics to signal that one or more of the actual
subprogram parameters are outside the domain of the corresponding mathematical
function.
Implementation Permissions
5
The implementation may specify the values of Pi
and e to a larger number of significant digits.
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