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For Loop Troubles

svanhornf15 (10)
Hello,

My instructor gave an assignment that goes like this:

"Use a for loop to generate a table similar to the following table. The first row of the table should be for 5/32 inch and it should end at 1 inch (32 thirty-seconds). Inside the loop, calculate the decimal equivalent in inches, determine the next bigger and the closest wrench sizes in mm, and calculate the differences between the two wrenches in inches.

There are 25.4 mm in one inch. 

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  Size       Size    Next Bigger   Difference     Closest     Difference
(Inches)   (Inches)  Metric (mm)    (Inches)     Metric(mm)   (Inches)
   5/32      0.156       4           0.001           4          0.001
   6/32      0.188       5           0.009           5          0.009
   7/32      0.219       6           0.017           6          0.017
   8/32      0.250       7           0.026           6         -0.014
   9/32      0.281       8           0.034           7         -0.006
  10/32      0.312       8           0.002           8          0.002
  11/32      0.344       9           0.011           9          0.011
  12/32      0.375      10           0.019          10          0.019
  13/32      0.406      11           0.027          10         -0.013
  14/32      0.438      12           0.035          11         -0.004
  15/32      0.469      12           0.004          12          0.004
  16/32      0.500      13           0.012          13          0.012
  17/32      0.531      14           0.020          13         -0.019
  18/32      0.562      15           0.028          14         -0.011
  19/32      0.594      16           0.036          15         -0.003
  20/32      0.625      16           0.005          16          0.005
  21/32      0.656      17           0.013          17          0.013
  22/32      0.688      18           0.021          17         -0.018
  23/32      0.719      19           0.029          18         -0.010
  24/32      0.750      20           0.037          19         -0.002
  25/32      0.781      20           0.006          20          0.006
  26/32      0.812      21           0.014          21          0.014
  27/32      0.844      22           0.022          21         -0.017
  28/32      0.875      23           0.031          22         -0.009
  29/32      0.906      24           0.039          23         -0.001
  30/32      0.938      24           0.007          24          0.007
  31/32      0.969      25           0.016          25          0.016
  32/32      1.000      26           0.024          25         -0.016


I got the first two row, but am having trouble with the math for the 3rd column and then how to make the decimals for the 4th. Then I figure the fifth is like the third. Last, how do I do the math for the 6th row? Very frusturated right now with this. Please help.

Here is my program:


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using namespace std;

int main()
{


//State Variables

   double i, j;


//Cout Statements
    
    cout.setf(ios::fixed);
    cout.precision(3);
    
    cout << "    Size       Size      Next Bigger\n " ;
    cout << " (Inches)   (Inches)    Metric (mm)" << endl;
    
//For Loop
    
    for (int i=5; i<=32; i+=1)
    {
        j = (i/32.0);
        cout << setw(6) << i  << "/32 " << setw(10) << j << endl;
        
     }
     

 
    system("PAUSE");
    
    return 0;

}
Last edited on
MiiNiPaa (8886)
3rd column: convert inches to mm and do ceil()
4th column: convert mms from third column back to inches and substract original value
5th column: convert inches to mm and do round()
6th column: convert mms from fifth column back to inches and substract original value
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