COORDINATE CONVERSION                                                           
                                                                                
                ( 1=CARTESIAN TO POLAR)                                         
                (-1=POLAR TO CARTESIAN)                                         
                ( 0=END PROGRAM)                                                
WHICH DIRECTION? 1                                                              
X,Y? 23,45                                                                      
R = 50.54 , A = 62.93                                                           
WHICH DIRECTION? -1                                                             
R,A? 9,65                                                                       
X = 3.8 ,  Y = 8.16                                                             
WHICH DIRECTION? 0                                                              
