Ouput in decimals

Question

int number = 3;

double value = Math.Round(46.00000000001, number);

Console.WriteLine(value);

 

My intention is to give input as  46.00000000001 and get output as 46.000 in the consolewindow. I want to get 46.000, not 46. So pls guide me.

 

if i give Math.Round(97.1639230690752, 3) its rounding of and giving me 97.164

but if do for  Math.Round(46.00000000001, number) , its only giving me 46 , not 46.000

 

Pls explain