anchor.diff:  /// Array([3, 5])
   /// */
   /// ```
  -Array arange({int start = 0, int stop = 10, int step = 1}) {
  +Array createArrayRange({int start = 0, int stop = 10, int step = 1}) {
     var N =
         (stop - start) ~/ step; // https:///stackoverflow.com/a/52479342/6846888
   
  
positive.code: /// ```dart
  /// import 'package:scidart/src/numdart/numdart.dart';
  ///
  /// print(arange(stop: 3));
  /// print(arange(start: 3, stop: 7))
  /// print(arange(start: 3, stop: 7, step: 2))
  ///
  /// /* output:
  /// Array([0, 1, 2])
  
negative.code: 
    return space;
  }
  
  @Deprecated('Use createArrayRange instead.')
  Array arange({int start = 0, int stop = 10, int step = 1}) {
    return createArrayRange(start: start, stop: stop, step: step);
  }
  