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Thread: How might one write an expression for a function that looks like this?

  1. #1
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    How might one write an expression for a function that looks like this?

    I'm looking to find an expression for a function that looks like the following.

    How might one write an expression for a function that looks like this?-untitled.png

    I clearly need a piece-wise function but I can't quite think of how to write it. Does anyone have any suggestions?

    Thanks for your help.
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  2. #2
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    Re: How might one write an expression for a function that looks like this?

    $$f(x)= \begin{cases} x & (0 < x < 1) \\ 1-x & ( 1 < x < 2) \\ f(x-2) & (x > 2) \end{cases}$$
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  3. #3
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    Re: How might one write an expression for a function that looks like this?

    Quote Originally Posted by kinhew93 View Post
    I'm looking to find an expression for a function that looks like the following.
    Click image for larger version. 

Name:	Untitled.png 
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ID:	38685
    $f(x) = (x - \left\lfloor x \right\rfloor ){( - 1)^{\left\lfloor x \right\rfloor }}$

    SEE GRAPH
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  4. #4
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    Re: How might one write an expression for a function that looks like this?

    How might one write an expression for a function that looks like this?-wolframalpha-graph__x_floor_x____1___floor_x____x_0_to_10__plot____2018_04_16_19_30.png
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