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Project: Fractions
Unit: DelphiDabbler.Lib.Fractions
Record: TFraction
Applies to: 0.1.x
class function Abs(const F: TFraction): TFraction; static;
Applies to: ~>0.2
class function Abs(const F: TFraction): TFraction; overload; static;
function Abs: TFraction; overload;
Returns the absolute value of a fraction. The returned fraction is not simplified.
The class method operates on the fraction passed as parameter F.
[~>0.2] The instance method operates upon the fraction instance on which it is called.
Using the class method:
var
F, G: TFraction;
begin
F := TFraction.Create(3, 4);
G := TFraction.Abs(F);
Assert(G = +F);
F := TFraction.Create(-7, 8);
G := TFraction.Abs(F);
Assert(G = -F);
end;
[~>0.2] Using the instance method:
var
F, G: TFraction;
begin
F := TFraction.Create(3, 4);
G := F.Abs;
Assert(G = +F);
F := TFraction.Create(-7, 8);
G := F.Abs;
Assert(G = -F);
end;