Arithmetic Instructions in C Programming
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Questions and Answers

What are the arithmetic operators used in C programming?

  • &, |, ^, ~
  • <, >, ==, !=
  • %, ++, --, =
  • +, -, *, / (correct)
  • In an integer mode arithmetic statement in C programming, what type of operands are involved?

  • Integer variables or real constants
  • Integer variables or integer constants (correct)
  • Real variables or integer constants
  • Real variables or real constants
  • What is the assignment operator in C programming?

  • ==
  • = (correct)
  • -=
  • +=
  • If 'i' is an integer variable in C programming, what would be the result of the arithmetic statement 'i = i + 1;'?

    <p>'i' will be incremented by 1</p> Signup and view all the answers

    What are the real mode arithmetic statements in C programming characterized by?

    <p>Involving only real constants and real variables</p> Signup and view all the answers

    If 'kot' is a float variable assigned the value 0.0056 in C programming, what type of constant is 0.0056?

    <p>Real constant</p> Signup and view all the answers

    What is the result of k = 2 / 9 if k is an integer variable?

    <p>0</p> Signup and view all the answers

    When executing 2 * x - 3 * y, how is it calculated based on the hierarchy of operations?

    <p>(2x) - (3y)</p> Signup and view all the answers

    What happens when evaluating A / B * C based on the hierarchy of operations?

    <p>(A / B) * C</p> Signup and view all the answers

    If a = 9 / 2.0, what will be the value stored in 'a'?

    <p>4.5</p> Signup and view all the answers

    When performing k = 9.0 / 2, what will be stored in 'k'?

    <p>4.5</p> Signup and view all the answers

    In k = 2 / 9.0, why does k get assigned the value of 0?

    <p><code>k</code> gets demoted to an integer.</p> Signup and view all the answers

    Which of the following arithmetic statements is NOT legal in C?

    <p>k * l = z ;</p> Signup and view all the answers

    What does the modulus operator (%) return in C when used on integers?

    <p>The remainder of the division</p> Signup and view all the answers

    Which data type in C cannot have the modulus operator (%) applied to it?

    <p>float</p> Signup and view all the answers

    If a variable 'si' is defined as 'float si;', what type of arithmetic statement does it belong to?

    <p>Mixed mode arithmetic statement</p> Signup and view all the answers

    In C, what is the result of -5 % 2?

    <p>-1</p> Signup and view all the answers

    'z = k * l ;' is an example of which kind of illegal arithmetic statement in C?

    <p>Left-hand side operand assignment</p> Signup and view all the answers

    Study Notes

    Arithmetic Instruction

    • A C arithmetic instruction consists of a variable name on the left-hand side of = and variable names & constants on the right-hand side of =.
    • The variables and constants on the right-hand side are connected by arithmetic operators like +, -, *, and /.
    • = is the assignment operator.

    Types of Arithmetic Statements

    • There are three types of arithmetic statements:
      • Integer mode arithmetic statement: All operands are either integer variables or integer constants.
      • Real mode arithmetic statement: All operands are either real constants or real variables.
      • Mixed mode arithmetic statement: Some operands are integers and some are real.

    Hierarchy of Operations

    • The hierarchy of operations determines the order in which operations are performed in an arithmetic statement.
    • The priority or precedence of operations is as follows:
      • (figure 1.8 not included, but it shows the hierarchy of operations)

    Execution of Arithmetic Statements

    • The right-hand side of an arithmetic statement is evaluated using constants and numerical values stored in variable names.
    • The result is then assigned to the variable on the left-hand side.

    Important Points to Note

    • C allows only one variable on the left-hand side of =.
    • The division operator / returns the quotient, whereas the modular division operator % returns the remainder.
    • The modulus operator % cannot be applied to a float.
    • The sign of the remainder is always the same as the sign of the numerator when using the modulus operator %.

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    Description

    Learn about arithmetic instructions in C programming, including the use of arithmetic operators and the assignment operator. Practice identifying variable names and constants in arithmetic expressions.

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