TMtx.Equal Methods

Summary

Compares two matrices.

Class
TMtx

Declaration

Function Equal(Mtx: TMtx; Tolerance: TSample; Compare: TCompare): boolean;

Description

Allows to specify the comparison method via the Compare parameter.

Declaration

Function Equal(Mtx: TMtx; Tolerance: TSample = 0): boolean;

Description

Compares Mtx with the calling matrix and returns true if the matrices are equal (if all elements match in position and value). Tolerance defines the comparison tolerance. The maximum difference between elements may not exceed: +/-Tolerance. If Tolerance is omitted, a direct comparison algorithm is used.

Example 1

      var A,B: TMtx;
        c: boolean;
      begin
        CreateIt(A,B);
        try
          A.SetIt(2,2,false,[1,2,
                             2,4]);  // 2x2, real matrix
          B.SetIt(2,2,false,[1,2,
                             2,4]);  // 2x2, real matrix
          c := A.Equal(B,1e-8); // Check for differences bigger than 0.00000001
          c := A.Equal(B); // Check for an exact match
        finally
          FreeIt(A,B);
        end;
      end;