double

System.Double
The default value is 0.

System.Double myDouble; 
double myDouble; 

double myDouble = 1.6;                            'double is the default  
double myDouble = 1.6d;                           'Suffix is optional  
double myDouble = 1.6D;                           'Suffix is optional  

double myDouble = 4/3;                            '=1.33333337  

double myDouble = 3.14E3;                         'Scientific notation   
double myDouble = -1.0/0.0;                       'Negative infinity  

System.Diagnostics.Debug.Print myDouble           '= 1.6  
System.Diagnostics.Debug.Print myDouble           '= 1.6  
System.Diagnostics.Debug.Print myDouble           '= 3140  
System.Diagnostics.Debug.Print myDouble           '= -Infinity  

double myDouble = 1.6; 
int myInteger = (int)myDouble;                    ' works