5.10: Loop Examples

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Temperature

Pseudocode

Function Main
    Call WhileLoop
    Call DoLoop
    Call ForLoop
End

Function WhileLoop
    Declare Real fahrenheit
    Declare Real celsius
    
    Assign fahrenheit = 0
    Call DisplayHeading()
    While fahrenheit <= 100
        Assign celsius = CalculateCelsius(fahrenheit)
        Call DisplayResult(fahrenheit, celsius)
        Assign fahrenheit = fahrenheit + 10
    End
End

Function DoLoop
    Declare Real fahrenheit
    Declare Real celsius
    
    Call DisplayHeading()
    Assign fahrenheit = 0
    Loop
        Assign celsius = CalculateCelsius(fahrenheit)
        Call DisplayResult(fahrenheit, celsius)
        Assign fahrenheit = fahrenheit + 10
    Do fahrenheit <= 100
End

Function ForLoop
    Declare Real fahrenheit
    Declare Real celsius
    
    Call DisplayHeading()
    For fahrenheit = 0 to 100 step 10
        Assign celsius = CalculateCelsius(fahrenheit)
        Call DisplayResult(fahrenheit, celsius)
    End
End

Function DisplayHeading
    Output "F°    C°"
End

Function CalculateCelsius (Real fahrenheit)
    Declare Real celsius
    
    Assign celsius = (fahrenheit - 32) * 5 / 9
Return Real celsius

Function DisplayResult (Real fahrenheit, Real celsius)
    Output fahrenheit & " = " & celsius
End

Output

F°	C°
0	-17.7777777777778
10	-12.2222222222222
20	-6.66666666666667
30	-1.11111111111111
40	4.44444444444444
50	10
60	15.5555555555556
70	21.1111111111111
80	26.6666666666667
90	32.2222222222222
100	37.7777777777778

F°	C°
0	-17.7777777777778
10	-12.2222222222222
20	-6.66666666666667
30	-1.11111111111111
40	4.44444444444444
50	10
60	15.5555555555556
70	21.1111111111111
80	26.6666666666667
90	32.2222222222222
100	37.7777777777778

F°	C°
0	-17.7777777777778
10	-12.2222222222222
20	-6.66666666666667
30	-1.11111111111111
40	4.44444444444444
50	10
60	15.5555555555556
70	21.1111111111111
80	26.6666666666667
90	32.2222222222222
100	37.7777777777778