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Math Help - Sinc functions

  1. #1
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    Sinc functions

    If sinc(x)=0.707.. what is x..
    How do we calculate this
    Thanks
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  2. #2
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    Quote Originally Posted by crane_2001 View Post
    If sinc(x)=0.707.. what is x.. How do we calculate this?
    What is the function sinc(x)?
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  3. #3
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    Are you using the normalized or unnormalized sine cardinal function?
    -Kevin C.
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    sinc function

    normalised
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  5. #5
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    Quote Originally Posted by crane_2001 View Post
    If sinc(x)=0.707.. what is x..
    How do we calculate this
    Thanks
    Quote Originally Posted by crane_2001 View Post
    normalised
    You're asking how to solve \frac{\sin (\pi x)}{\pi x} = 0.707 ... You can't get an exact value in closed form. It's an example of a transcendental equation.

    If you're only interested in calculatiing a numerical approximation to the exact value, then there are many options.
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