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Math Help - Is the archimedean spiral and the involute of a circle the same shape?

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    Senior Member TriKri's Avatar
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    Is the archimedean spiral and the involute of a circle the same shape?

    Well, Is the archimedean spiral and the involute of a circle the same shape? How do you prove that it is the same shape/not the same shape?

    Thanks
    /Kristofer
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  2. #2
    Flow Master
    mr fantastic's Avatar
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    Quote Originally Posted by TriKri View Post
    Well, Is the archimedean spiral and the involute of a circle the same shape? How do you prove that it is the same shape/not the same shape?

    Thanks
    /Kristofer
    No. Read:

    involute of a circle

    I-4: Spiral Pump ? mathematical description

    Circle Involute Pedal Curve -- from Wolfram MathWorld
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