TVectorDotProduct (Delphi)
Description
This example illustrates how to use the DotProduct method to obtain the scalar product of Self and the given vector.
Code
uses
System.SysUtils,
System.Types;
var
aVector1,aVector2: TVector;
aPoint1, aPoint2:TPointF;
aProduct: Single;
begin
aPoint1.Create(4,2);
aPoint2.Create(1,5);
aVector1.Create(aPoint1);
writeln(Format('%2.2f %2.2f',[aVector1.X,aVector1.Y]));
// The console will output: 4.00 2.00, representing the coordinates for aVector1.
aVector2.Create(aPoint2);
writeln(Format('%2.2f %2.2f',[aVector2.X,aVector2.Y]));
// The console will output: 1.00 5.00, representing the coordinates for aVector2.
aProduct:=aVector1.DotProduct(aVector2);
writeln(Format('%2.2f',[aProduct]));
// The console will output: 14.00, representing the scalar product between aVector1 and aVector2.
end.