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evaluating expressions

 
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evaluating expressions, please explian what is being asked
jona431
14 Oct, 2006 - 07:59 PM
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I,m not sure what is being asked of me here. I have posted below what information is being asked, and the code I think that it is asking for. If anyone knows please explain if I am off track. Thanks in advance

Given: int a = 4, b = 5, c = 7, x = 12;
Evaluate each expression:

a) _________________ c / b = = 2

cool.gif __________________ c % b = = 2

c) __________________ b = c / a != c – a

d) __________________ (b < c) && (c = = 7)

e) __________________ (c + x – b == 0) || (a = 5)


CODE

#include <stdio.h>
#include <conio.h>

int main()
{
    int a=4, b=5, c=7, x=12;
    int Answer=0;

    Answer=c/b==2;
        printf("The Answer for question a is:%i ",Answer);

    
    getch ();

return 0;
}
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gregoryH
RE: Evaluating Expressions
14 Oct, 2006 - 08:08 PM
Post #2

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what did you get for your first answer?
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jona431
RE: Evaluating Expressions
14 Oct, 2006 - 08:16 PM
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My 1st answer was 1, then I made a change now I'm getting 0
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Jayman
RE: Evaluating Expressions
14 Oct, 2006 - 09:04 PM
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Hmm...unless there are other instructions to your problem these are simple True/False questions. You are being asked to evaluate each expression to determine whether it is a True statement or a False statement.

You do that by substituting the numbers provided for each variable:
For example:
int a = 4, b = 5, c = 7, x = 12;

The first problem is c / b = = 2, simply substitue the numbers 7 / 5 = 1.4. And so the problem resolves to 1.4 == 2. Now is this in its current form a true statement? Does 1.4 equal 2?

The answer is either true 1.4 does equal 2 or else the answer is false 1.4 does not equal 2.

Now apply that same logic to the rest of the problems.
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jona431
RE: Evaluating Expressions
14 Oct, 2006 - 09:15 PM
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Thanks jayman9, that helps alot. smile.gif
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jona431
RE: Evaluating Expressions
16 Oct, 2006 - 12:46 PM
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I'm not sure how I need to write this??? Should it be in a switch with several cases??..Any more help is appreciated!
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Amadeus
RE: Evaluating Expressions
16 Oct, 2006 - 03:07 PM
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Well, a switch statement would imply that you are making a decision based on some input...which does not appear to be the case. I expect you could simply proceed along the lines you're going...

CODE

int main(void)
{
   int a=4, b=5, c=7, x=12;
   printf("The Answer for question a is:%i ",(c/b==2));
   return 0;
}

and so on...or assign the results to a variable as you've done in the first example and print.

Was it specified that you actually had to write code for these evaluations?

If so, perhaps the most intuitive way to proceed might be to use an if else construct for each:
CODE

int main(void)
{
   int a=4, b=5, c=7, x=12;
   if(c/b==2)
      printf("True");
   else
      printf("False");
   return 0;
}

And so on.
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NyeNye
RE: Evaluating Expressions
16 Oct, 2006 - 05:18 PM
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it's just a simple boolean statement and displaying the result if you want.
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