The following table provides summary descriptions of the AutoLISP conversion functions.
Conversion functions  | 
                  |
|---|---|
Function  | 
                     Description  | 
                  
(angtof string [mode])  | 
                     Converts a string representing an angle into a real (floating-point) value in radians  | 
                  
(angtos angle [mode [precision]])  | 
                     Converts an angular value in radians into a string  | 
                  
(ascii string)  | 
                     Returns the conversion of the first character of a string into its ASCII character code (an integer)  | 
                  
(atof string)  | 
                     Returns the conversion of a string into a real  | 
                  
(atoi string)  | 
                     Returns the conversion of a string into an integer  | 
                  
(chr integer)  | 
                     Returns the conversion of an integer representing an ASCII character code into a single-character string  | 
                  
(cvunit value from to)  | 
                     Converts a value from one unit of measurement to another  | 
                  
(distof string [mode])  | 
                     Converts a string that represents a real (floating-point) value into a real value  | 
                  
(itoa int)  | 
                     Returns the conversion of an integer into a string  | 
                  
(rtos number [mode [precision]])  | 
                     Converts a number into a string  | 
                  
(trans pt from to [disp])  | 
                     Translates a point (or a displacement) from one coordinate system to another  |