Difference between revisions of "2016 Old Spec"
(→Figure 4) |
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| Line 8: | Line 8: | ||
OUTPUT "Enter a number:" | OUTPUT "Enter a number:" | ||
INPUT N | INPUT N | ||
| − | F | + | F = 16.0 |
IF N >= 1.0 | IF N >= 1.0 | ||
| − | THEN | + | :THEN |
| − | X | + | ::X = N |
| − | WHILE X * X – N > 1.0 AND F – 1.0 > 1.0 DO | + | ::WHILE X * X – N > 1.0 AND F – 1.0 > 1.0 DO |
| − | L | + | :::L = X |
| − | X | + | :::X = X ÷ F |
| − | WHILE X * X <= N DO | + | :::WHILE X * X <= N DO |
| − | F | + | ::::F = F – 0.1 |
| − | X | + | ::::X = L ÷ F |
| − | ENDWHILE | + | :::ENDWHILE |
| − | ENDWHILE | + | ::ENDWHILE |
| − | OUTPUT X | + | ::OUTPUT X |
| − | ELSE | + | :ELSE |
| − | OUTPUT | + | ::OUTPUT "Not a number greater than or equal to 1" |
| + | ENDIF | ||
Revision as of 14:13, 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
