havers method

Matrix havers()

Element-wise haversine

Implementation

Matrix havers() {
  Matrix result = Matrix.zeros(rowCount, columnCount, isDouble: true);
  for (int i = 0; i < rowCount; i++) {
    for (int j = 0; j < columnCount; j++) {
      result[i][j] = 0.5 * (1 - math.cos(this[i][j]));
    }
  }
  return result;
}