CSng Function 
                                Syntax
                                CSng(Num|$) 
 
                                Group
                                Conversion
                                
                                Description
                                Convert to a single precision real. 
 If Num|$ 
 is too big (or too small) to fit then an overflow error occurs. 
                                
                                    
                                        | Parameter | 
                                        Description | 
                                    
                                    
                                        | Num|$ | 
                                        Convert a number or string value to a single precision real.  | 
                                    
                                
                                Example
                                Sub Main 
Debug.Print CSng(Sqr(2)) 
 ' 1.4142135381699 
End Sub