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Engineering LibreTexts

4.10: Condition Examples

  • Page ID
    10646
  • Temperature

    Pseudocode

    Function Main
        Declare String choice
        
        Assign choice = GetChoice()
        If Choice = "C" Or Choice = "c"
            Call ProcessCelsius()
        False:
            If Choice = "F" Or Choice = "f"
                Call ProcessFahrenheit()
            False:
                Output "You must enter C to convert to Celsius or F to convert to Fahrenheit!"
            End
        End
    End
    
    Function CalculateCelsius (Real fahrenheit)
        Declare Real celsius
        
        Assign celsius = (fahrenheit - 32) * 5 / 9
    Return Real celsius
    
    Function CalculateFahrenheit (Real celsius)
        Declare Real fahrenheit
        
        Assign fahrenheit = celsius * 9 / 5 + 32
    Return Real fahrenheit
    
    Function DisplayResult (Real temperature, String fromScale, Real result, String toScale)
        Output temperature & "° " & fromScale & " is " & result & "° " & toScale
    End
    
    Function GetChoice
        Declare String choice
        
        Output "Enter F to convert to Fahrenheit or C to convert to Celsius:"
        Input Choice
    Return String choice
    
    Function GetTemperature (String scale)
        Declare Real temperature
        
        Output "Enter " & scale & " temperature:"
        Input temperature
    Return Real temperature
    
    Function ProcessCelsius
        Declare Real temperature
        Declare Real result
        
        Assign temperature = GetTemperature("Celsius")
        Assign result = CalculateCelsius(temperature)
        Call DisplayResult(temperature, "Fahrenheit", result, "Celsius")
    End
    
    Function ProcessFahrenheit
        Declare Real temperature
        Declare Real result
        
        Assign temperature = GetTemperature("Fahrenheit")
        Assign result = CalculateFahrenheit(temperature)
        Call DisplayResult(temperature, "Celsius", result, "Fahrenheit")
    End
    

    Output

    Enter C to convert to Celsius or F to convert to Fahrenheit:
     c
    Enter Fahrenheit temperature:
     100
    100° Fahrenheit is 37.7777777777778° Celsius
    
    Enter C to convert to Celsius or F to convert to Fahrenheit:
     f
    Enter Celsius temperature:
     100
    100° Celsius is 212° Fahrenheit
    
    Enter C to convert to Celsius or F to convert to Fahrenheit:
     x
    You must enter C to convert to Celsius or F to convert to Fahrenheit.
    

    Flowchart

    File:Flowgorithm Conditions ProcessCelsius.svg File:Flowgorithm Conditions ProcessFahrenheit.svg

    File:Flowgorithm Conditions GetChoice.svg File:Flowgorithm Conditions GetTemperature.svg

    File:Flowgorithm Conditions CalculateCelsius.svg File:Flowgorithm Conditions CalculateFahrenheit.svg

    File:Flowgorithm Conditions DisplayResult.svg