Matrix.DotProd Method

Scalar product of two real arrays.

Syntax

Visual Basic

public double DotProd([In] TMtxVec Vec, int VecIndex, int Index, int Len);

Returns the scalar product between Vec elements [VecIndex]..[VecIndex+Len-1] and calling object elements [Index]..[Index+Len-1]. An exception is raised if Vec and calling object Complex property is True. An exception is raised if ConditionCheck is True and array borders are overrun or underrun. The dot product is defined by the equation:

Both objects must be of equal size. If they are not, the method will return the dot product of the largest sub-array.

See Also

DotProdc

Example

var a,b: Matrix; prod: double; begin a.SetIt(1,4,False,[1,2,3,4]); b.SetIt(1,4,False,[5,6,7,8]); prod := a.DotProd(b,0,0,4); // = 1*5 + 2*6 + * 3*7 + 4*8 end;

Group

Matrix Methods

Links

Matrix Structure, Matrix Members, Dew.Math Namespace, Matrix Methods, Example, See Also

Contents | Index | Home

What do you think about this topic? Send feedback!