TMtxVec.SinCos Methods

Summary

Sine and cosine.

Declaration

Procedure SinCos(SinX, CosX: TMtxVec; SinXIndex, CosXIndex, Index, Len: integer);

Description

Calculates the sine and cosine for calling object elements [Index]..[Index+Len-1] and stores the sines to SinX elemets [SinXIndex]..[SinXIndex+Len-1] and cosines to CosX elements [CosXIndex]..[CosXIndex+Len-1] elements. Size and Complex property of SinX and CosX objects are not set automatically. An exception is raised if ConditionCheck and array borders are overrun/underun.

Declaration

Procedure SinCos(SinX, CosX: TMtxVec);

Description

Calculates the sine and cosine for all calling object elements and stores the sines to SinX and cosines to CosX. Size and Complex property of SinX and CosX are adjusted automatically.

Note: Use this method if you require both sine and cosine.

See Also
Sin
Cos

Example 1

      var a: TVec;
          s,c: TVec;
      begin
        CreateIt(a,s,c);
        try
          a.SetIt(false[0,PiDiv2,Pi]);
          a.Sincos(s,c); // s=[0,1,0], c =[1,0,-1]
        finally
          FreeIt(a,s,c);
        end;
      end;