Chapter 2.1, Problem 3CE

To determine

Tomodify the program in exercise 1 so that if there are no solutions in the given domain, the computer will print a message to this effect.

Explanation of Solution

Given:

The values of a, b, c and d are to be entered by the user.

Calculation:

The following is the required MODIFIEDBASICProgram-

10 PRINT “THIS PROGRAM WILL SOLVE INEQUALITY”
20 PRINT “OF THE FORM A*X+B <C”
30 INPUT “ENTER A, B AND C:” A, B, C$
40 INPUT “ENTER DOMAIN SET”; D
50 PRINT “SOLUTION SET CONSISTS OF X SUCH THAT”
60 IF A<0 AND C<0 THEN PRINT
	“X>” (B+C)/A;
70 IF A<0 AND C>0 THEN PRINT
	“X>” (-C-B)/A;
80 IF A>0 AND C>0 THEN PRINT
	“X<” (C-B)/A;
90 IF A>0 AND C<0 THEN PRINT
	“X<” (-C-B)/A;
100 IF X<MIN (DOMAIN) OR X>MAX (DOMAIN) THEN PRINT
	“THERE IS NO SOLUTION FROM THE DOMAIN”.

110 END

DRY RUN of the program:-

SAMPLE OUTPUT:

THIS PROGRAM WILL SOLVE INEQUALITY

OF THE FORM A*X+B <C

ENTER A, B AND C

  $A=-4,B=5,C=1$

ENTER DOMAIN SET

  $D=\{2,3,4\}$

SOLUTION SET CONSISTS OF X SUCH THAT

  $X>1$

THERE IS NO SOLUTION FROM THE DOMAIN.