it's fun coding matrix.

matrix3.dart

// As Dart does not have multidimensional arrays or lists to be specific. 
// I'm trying to create a matrix of 3x3.

class MatrixT{
  // matrix has 9 elements as follows
  // R11, R12, R13
  // R21, R22, R23
  // R31, R32, R33
  // to create a matrix we're gonna create a list of length 9
  // each 3 elements represent each row. 1 2 3 respectively.
  int r11 = 0;
  int r12 = 0;
  int r13 = 0;
  int r21 = 0;
  int r22 = 0;
  int r23 = 0;
  int r31 = 0;
  int r32 = 0;
  int r33 = 0;
  MatrixT(this.r11,
this.r12,
this.r13,
this.r21,
this.r22,
this.r23,
this.r31,
this.r32,
this.r33,);
  
  List createMatrix(){
      
 List<int> matrix = [];
  matrix.add(r11);
    matrix.add(r12);
    matrix.add(r13);
    matrix.add(r21);
    matrix.add(r22);
    matrix.add(r23);
    matrix.add(r31);
    matrix.add(r32);
    matrix.add(r33);
    return matrix;
  }
  // Todo: create a method which return leftDiagonal addition and rightDiagonal addition.
  void printLeftDiagonal(){
   
  }
  // you can modify this code and make it look like exactly same as 3x3 Matrix. 
  // by creating 3 lists and adding elements in their respective place and then
  // create a method to print all the 3 lists one by one so it looks like a matrix
  
  
}


void main (){
  MatrixT newMatrix = MatrixT(1,2,2,3,4,5,6,7,8);
  var myMat = newMatrix.createMatrix();
  print(myMat);
}