TMtx.Inv Methods

Summary

Calculates matrix inverse (Mtx^-1).

Class
TMtx

Declaration

Function Inv(MtxType: TMtxType): TMtx;

Description

Compute inverse of the matrix and specify the matrix type to select the most performance efficient algorithm.

Declaration

Function Inv: TMtx;

Description

Calculate the inverse (Mtx^-1) of the calling matrix. If the calling matrix is not Quadratic, an exception is raised. Parameter MtxType determines which optimized method will be used for calculating the inverse matrix. If MtxType is omitted, the default value mtGeneral (general quadratic matrix) is used.

NOTE: The MtxType parameter is not verified. To determine if the calling matrix type is actually MtxType, use the DetectMtxType method.

See Also
DecectMtxType
MtxError

Example 1

      var  A: TMtx;
      begin
        CreateIt(A);
        try
          A.SetIt(2,2,False,[1,2,
                             2,4]);  // 2x2, real matrix
          A.Inv;
        finally
          FreeIt(A);
        end;
      end;