5   FILEN#1:"DEGREE.BD"
10  REMARK:  DEGREES OF VISUAL ANGLE PROGRAM
15  PRINT#1:"AT A DISTANCE OF L CMS, DEGREES OF VISUAL ANGLE EQUALS D"
20  FOR L=30 TO 150
30  R=5
40  Z=2*ATN(R/L)
50  D=57.2*Z
85  PRINT#1:L,D
90  NEXT L
95  CLOSE #1
100 END