randn
==========

.. js:function:: RandomHelper.randn() 

ソース
^^^^^^

.. code-block:: js

        randn() {
            var m;
    
            switch (arguments.length) {
                case 0:
                    return this.NextDouble();
    
                case 1:
                    m = new ArrayView(1, arguments[0]);
                    break;
    
                case 2:
                    m = new ArrayView(arguments[0], arguments[1]);
                    break;
    
                default:
                    Assert(false, "");
                    return null;
            }
    
            m.dt = m.dt.map(x => this.NextDouble());
    //        m.dt = m.dt.map(x => Math_random());
    
            return m;
        }