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
