2016 Old Spec

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