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Engineering LibreTexts

5.10: Loop Examples

  • Page ID
    10663
  • 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
    

    Flowchart

    File:Flowgorithm Loops Main File:Flowgorithm While Loop.svg

    File:Flowgorithm Do Loop.svg File:Flowgorithm For Loop.svg

    File:Flowgorithm Loops DisplayHeading.svg File:Flowgorithm Conditions CalculateCelsius.svg File:Flowgorithm Loops DisplayResult.svg