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Math Help - The (int) Function

  1. #1
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    The (int) Function

    Before I begin, what does "int" mean in terms of functions?

    Is this a symbol for the greatest integer function or floor function?

    If so, do we say greatest integer function of simply integer function?

    Here is the question:

    If f(x) = int(x/2), find the following:

    (a) f(1.2)

    (b) f(-1.8)

    NOTE: How do I read int(x/2)? Is it "int times the fraction x/2"?
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  2. #2
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    Quote Originally Posted by magentarita View Post
    Before I begin, what does "int" mean in terms of functions?

    Is this a symbol for the greatest integer function or floor function?

    If so, do we say greatest integer function of simply integer function?

    Here is the question:

    If f(x) = int(x/2), find the following:

    (a) f(1.2)

    (b) f(-1.8)

    NOTE: How do I read int(x/2)? Is it "int times the fraction x/2"?
    My understanding is that int(x) gives the integer part of x ......
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  3. #3
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    Ok but....

    Ok but how do you solve this question?

    Can you atleast share the steps necessary to solve for f(x)?

    Do I replace x with 1.2 and then again with -1.8 and simplify?
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  4. #4
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    Quote Originally Posted by magentarita View Post
    Ok but how do you solve this question?

    Can you atleast share the steps necessary to solve for f(x)?

    Do I replace x with 1.2 and then again with -1.8 and simplify?
    Are you familiar with functional notation? Have you met questions like

    f(x) = sqrt(x/2), find f(8) etc.


    f(x) = int(x/2) =>

    f(1.2) = int(1.2/2) = int(0.6) ......

    f(-1.8) = int(-1.8/2) = int(-0.9) .....
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  5. #5
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    It got it now.

    I thank you for your effort.
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