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    PF Lab 4 Summer

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    The document discusses programming fundamentals related to functions in C++. It provides several tasks and examples to help learn the purpose and usage of functions, including writing functions to calculate expressions, perform basic math operations, find maximum values in arrays, and count vowels in a name. Learners are asked to create and call various functions to evaluate expressions, manipulate arrays, and analyze strings.

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    PF Lab 4 Summer

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    58 views5 pages
    The document discusses programming fundamentals related to functions in C++. It provides several tasks and examples to help learn the purpose and usage of functions, including writing functions to calculate expressions, perform basic math operations, find maximum values in arrays, and count vowels in a name. Learners are asked to create and call various functions to evaluate expressions, manipulate arrays, and analyze strings.

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    The document discusses programming fundamentals related to functions in C++. It provides several tasks and examples to help learn the purpose and usage of functions, including writing functions to calculate expressions, perform basic math operations, find maximum values in arrays, and count vowels in a name. Learners are asked to create and call various functions to evaluate expressions, manipulate arrays, and analyze strings.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    58 views5 pages

    PF Lab 4 Summer

    Uploaded by

    Technical Information
    The document discusses programming fundamentals related to functions in C++. It provides several tasks and examples to help learn the purpose and usage of functions, including writing functions to calculate expressions, perform basic math operations, find maximum values in arrays, and count vowels in a name. Learners are asked to create and call various functions to evaluate expressions, manipulate arrays, and analyze strings.

    Copyright:

    © All Rights Reserved
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    of 5

    Programming Fundamentals

    Lab-4
    Topic Basics of functions
    Learning objectives of this lab is to be able to learn the purpose and usage of
    Objective functions.

    Question 1: (Demo)

    (a)Write a C++ program to calculate power of a number. Use built-in function for calculation.

    (b) Write a C++ program that calls a function print_table(). The function is supposed to print the table
    of a user entered number till 6 on console.
    Sample Output:

    Enter a number:3
    3*1=3
    3*2=6
    3*3=9
    3 * 4 = 12
    3 * 5 = 15
    3 * 6 = 18

    (c)Now modify this above function and pass parameter (integer) to it for which you want to print table
    of.
    Hint: Output will be same but function prototype will be changed i.e. print_table(int number)

    Question 2: Write a C++ program which works as a basic calculator. Make a function calculator() that
    accepts two integer values and a character value. Your function should perform the operation on the
    entered integer values depending on the character value entered by the user and return the output to
    main().
    Make sure to create separate functions of sum(int,int), subtraction(int,int), multiplication(int,int)
    and division(int,int). The function calculator(int,int,char) should be able to call the necessary function
    as required.
    Sample Output:

    Enter Number 1: 100


    Enter Number 2: 2
    Enter Character: +
    The result after addition is: 102
    Task-3: Write a C++ program to evaluate the following expression using the same implemented
    functions as above. Also make sure to use find_mul(int,int) where ever you feel the need to calculate
    square instead of creating a separate function for square.
    𝑎2 + 𝑏2
    To evaluate the above expression, you can only use following functions and no other function should
    be created:

    int calcMul(int,int);
    int calcSum(int,int);

    NOTE: Copy paste the function of multiplication and sum which has been previously
    implemented.

    Sample Output:

    Enter a: 10
    Enter b: 2
    Result is: 104

    Task-4: Write a C++ program to evaluate the following expression using the find_mul(int,int)
    function. And print the result through main.

    3𝑎𝑏

    NOTE: Copy paste the function of multiplication which has been previously implemented.

    Sample Output:

    Enter a: 10
    Enter b: 2
    Result is: 60

    Task-5: Write a C++ program to evaluate the following expression using the same implemented
    functions as above.
    32 + 𝑎2 + 𝑏 + 3𝑎𝑏
    To evaluate the above expression, you can only use following functions and no other function should
    be created:

    int calcMul(int,int);
    int calcSum(int,int);

    NOTE: Copy paste the function of multiplication and sum which has been previously
    implemented.
    Sample Output:

    Enter a: 10
    Sample
    Enter b:Output:
    2
    Result is: 171
    Task 7:

    b) Use the above function of sum which you have created in task-03. Now, using the same
    function you have to calculate sum of two arrays separately and display the results of each
    on screen from main.
    Sample Output:
    Array1:2 3 4 5 6 1 2 1 2
    Array2:2 3 1 2 1 3 1
    Sum of array1 is: 26
    Sum of array 2 is: 13

    c) Make a function findmax that accepts the sum of arrays (calculated in previous step) and finds
    the maximum value.
    Sample Output:
    Maximum value is: 26

    d) Make a function ‘void update(int a*+,int,int) that accepts an array, size and maximum
    value(i.e.26) and update array values by subtracting from maximum value.

    Sample Output:

    Array1:24 23 22 21 20 25 24 25 24
    Array2:24 23 25 24 25 23 25
    Task 6:
    Make a program that takes full name from user. Make a function check() that accepts the name.
    Function should display the index of vowels and return the total number of vowel present in array.
    To calculate the total number of vowels you can use the function of sum previously implemented.

    Sample Output:
    Enter Full name: ali ahmad
    Vowel is at index: 0 2 4 7
    Total vowel: 4

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