function AddProduct(const Vec1: TMtxVec; const Vec2: TMtxVec): TMtxVec;
Add a product of two vectors.
Result: stored in self (calling object), returns self for chaining
Remarks:
Multiply Vec1 elements with coresponding Vec2 elements and add the result to the calling vector. The size of the calling vector is set implicitly.
Examples
var
a, x, y, expected: Vector;
begin
a := [1.0, 2.0, 3.0, 4.0];
x := [1.0, 2.0, 3.0, 4.0];
y := [5.0, 6.0, 7.0, 8.0];
a.AddProduct(x, y);
expected := [6.0, 14.0, 24.0, 36.0];
if not a.IsEqual(expected, 1e-10, TCompare.cmpAbsolute) then
raise Exception.Create('Vector.AddProduct: mismatch');
end;See Also: Vector.Mul, Vector.Add
Indexed: function AddProduct(const Vec1: TMtxVec; const Vec2: TMtxVec; Vec1Index: Integer; Vec2Index: Integer; Index: Integer; Len: Integer): TMtxVec;
Multiply Vec1 elements [Vec1Index]..[Vec1Index+Len-1] with Vec2 elements [Vec2Index]..[Vec2Index+Len-1] add the results to the calling object elements [Index]..[Index+Len-1].
| # | Name | Type | Description |
|---|---|---|---|
| 1 | Vec1 | TMtxVec | |
| 2 | Vec2 | TMtxVec | |
| 3 | Vec1Index | Integer | |
| 4 | Vec2Index | Integer | |
| 5 | Index | Integer | start index |
| 6 | Len | Integer | element count |
Result: stored in self (calling object), returns self for chaining
Remarks:
An exception is raised if Vector.ConditionCheck is true and array borders are overrun.