Difference between revisions of "2016 Old Spec"
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| − | The algorithm, represented using pseudo-code in Figure 4, and the variable table, Table 2, describe a program that outputs an estimate for a particular calculation. | + | The algorithm, represented using pseudo-code in '''Figure 4''', and the variable table, '''Table 2''', describe a program that outputs an estimate for a particular calculation. |
=Figure 4= | =Figure 4= | ||
| Line 10: | Line 10: | ||
F = 16.0 | F = 16.0 | ||
IF N >= 1.0 | IF N >= 1.0 | ||
| − | + | THEN | |
| − | + | X = N | |
| − | + | WHILE X * X – N > 1.0 AND F – 1.0 > 1.0 DO | |
| − | + | L = X | |
| − | + | X = X ÷ F | |
| − | + | WHILE X * X <= N DO | |
| − | + | F = F – 0.1 | |
| − | + | X = L ÷ F | |
| − | + | ENDWHILE | |
| − | + | ENDWHILE | |
| − | + | OUTPUT X | |
| − | + | ELSE | |
| − | + | OUTPUT "Not a number greater than or equal to 1" | |
ENDIF | ENDIF | ||
| + | |||
| + | =Table 2= | ||
| + | {| | ||
| + | |- | ||
| + | ! Indentifier | ||
| + | ! Data Type | ||
| + | |- | ||
| + | | X | ||
| + | | Real Number | ||
| + | |- | ||
| + | | F | ||
| + | | Real Number | ||
| + | |- | ||
| + | | L | ||
| + | | Real Number | ||
| + | |- | ||
| + | | N | ||
| + | | Real Number | ||
| + | |} | ||
=What you need to do= | =What you need to do= | ||
Latest revision as of 13:20, 29 November 2016
Question 5
The algorithm, represented using pseudo-code in Figure 4, and the variable table, Table 2, describe a program that outputs an estimate for a particular calculation.
Figure 4
OUTPUT "Enter a number:"
INPUT N
F = 16.0
IF N >= 1.0
THEN
X = N
WHILE X * X – N > 1.0 AND F – 1.0 > 1.0 DO
L = X
X = X ÷ F
WHILE X * X <= N DO
F = F – 0.1
X = L ÷ F
ENDWHILE
ENDWHILE
OUTPUT X
ELSE
OUTPUT "Not a number greater than or equal to 1"
ENDIF
Table 2
| Indentifier | Data Type |
|---|---|
| X | Real Number |
| F | Real Number |
| L | Real Number |
| N | Real Number |
What you need to do
- Write a program for the algorithm in Figure 4.
- Test the program by conducting the tests:
- Test that your program works correctly by entering the number 0.1
- Test that your program works correctly by entering the number 4.1
