2590 GOSUB 8500 2600 LET B=-2 2610 LET A=B^B 2620 LET O$="12" 2630 LET Y=.25 2640 GOSUB 8500 2650 LET C=-3 2660 LET A=B⭑C 2670 LET O$="13" 2680 LET Y=-.125 2690 GOSUB 8500 2700 LET B=-3 2710 LET A=1^B 2720 LET O$="14" 2730 LET Y=1 2740 GOSUB 8500 2750 LET B=-2 2760 LET A=Bˆ0 2770 LET 0$="15" 2780 LET Y=1 2790 GOSUB 8500 2800 LET B=-3 2810 LET A=.5^B 2820 LET 0$="16" 2930 GOSUB 8500 2950 LET C=-3 2960 LET A=B^C 2970 LET 0$="19" 2980 LET Y=-8 2990 GOSUB 8500 3000 LET A=B^3 3010 LET 0$="20" 3020 LET Y=-.125 7060 LET E1=0 7080 PRINT "CASE #","SHOULD BE","ACTUAL","OUTCOME" 7090 PRINT 7300 RETURN 8000 REM SUBROUTINE TO END SECTION 8010 PRINT 8020 IF E1=0 THEN 8050 8025 PRINT "*** TEST FAILED IN ";E1;" CASE(S) ***" 8030 GOTO 8060 8050 PRINT "*** TEST PASSED ***" 8500 REM HANDLE TEST CASE REPORT 8510 PRINT O$,Y,A, 8520 LET P$="FAILS" 8530 LET M=0.1 8540 IF Y>1 THEN 8570 8550 IF Y<-1 THEN 8570 8560 LET M=0.01 8570 LET T=A-Y 8580 IF T>M THEN 8630 8590 LET T=Y-A 8600 IF T>M THEN 8630 8610 LET P$="PASSES" 8620 GOTO 8640 8630 LET E1=E1+1 8640 PRINT "TEST ";P$ 8650 RETURN 8660 END PROGRAM FILE 25: MULTIPLY, DIVIDE, AND INVOLUTE ANSI STANDARD 7.2, 7.4 THIS PROGRAM TESTS THE GROSS SEMANTIC CHARACTERISTICS OF THE MULTIPLY, DIVIDE, AND INVOLUTION OPERATORS FOR THE CONSTRUCTION OF NUMERIC EXPRESSIONS. EXPRESSIONS USING ONLY ONE OPERATOR AND CONSTANTS AND SIMPLE VARIABLES ARE EVALUATED, AND THE RESULTS TESTED AGAINST THE CORRECT VALUE. CONSTANTS ARE EXPRESSED IN NR1, NR2, AND NR3 FORM. THE VALUES OF THE OPERANDS AND RESULTS ARE RESTRICTED TO INTEGERS AND SIMPLE FRACTIONS TO AVOID ACCURACY PROBLEMS (ACCURACY IS ADDRESSED IN LATER TESTS). SECTION 25.1: MULTIPLY BEGIN TEST 10 PRINT "PROGRAM FILE 26: PRECEDENCE RULES FOR NUMERIC EXPRESSIONS." 20 PRINT " ANSI STANDARD 7.2, 7.4" 30 PRINT 40 PRINT "THIS PROGRAM TESTS WHETHER THE PRECEDENCE RULES ARE" 50 PRINT "CORRECTLY IMPLEMENTED." 60 PRINT 70 PRINT "SECTION 26.1: PRECEDENCE ACCORDING TO OPERATOR AND" 80 PRINT " 90 PRINT POSITION (LEFT TO RIGHT)." 100 PRINT "THIS SECTION TESTS THE PRECEDENCE RULES USING SIMPLE" 110 PRINT "INTEGER OPERANDS AND ALL ORDERED PAIRS OF OPERATORS" 120 PRINT "FOR WHICH THE ORDER OF EVALUATION MAKES A DIFFERENCE." 130 PRINT "NO PARENTHESES ARE USED." 163 PRINT "CASE #","SHOULD BE","ACTUAL", "OUTCOME" 600 LET Y=24 610 GOSUB 9000 620 LET A=6 / 2+1 630 LET 0$="12" 640 LET Y=4 650 GOSUB 9000 660 LET A=6 / 2-1 670 LET 0$="13" 680 LET Y=2 690 GOSUB 9000 700 LET A=2 / 1*2 710 LET 0$="14" 720 LET Y=4 730 GOSUB 9000 740 LET A=8 / 2/2 750 LET 0$="15" 760 LET Y=2 770 GOSUB 9000 780 LET O$="16" 790 LET A=8/2 ^ 2 800 LET Y=2 810 GOSUB 9000 820 LET A=2 ^ 2+2 830 LET 0$="17" 840 LET Y=6 850 GOSUB 9000 860 LET A=2^3-2 |