casting from object[] array to double[] array

[Abhi]

Hi Team,
               I have an array of objects[] but I want to convert them to an array of doubles[]

               I tried in the following ways.............. but I got error (cannont implicitly convert object[] to double[])

              1. double[] values = (double[])o; (here o means object array)
             
              2. double[] values = o.Cast<double>().ToArray(typeof(double));
               
              3. 

var doubles = Array.ConvertAll<object, double>(objects, o => (double)o);