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Math Help - when the line touch the inner circumference of the circle ?

  1. #1
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    when the line touch the inner circumference of the circle ?

    hi
    how are u all

    i have a math problem and since am not good in math so i need some help plz

    i have a values start from zero and step by a nigative and positive value
    as in the attached pic

    exmple: start value zero next value -2 then 1 then -3 ,2,-2, -2,-3,2,-3,1,-1,1,-3,1,-8
    am using a caliper to draw a circle started from the zero point and every time i have a new value i will increase the width of the caliper gap by one degree and draw a new ciurcle....the line that start from zero will not touch the inner circumference of the circle until a certain point
    since am using the graphical solution of this problem it may need a large circle to find the solution

    could any one help in a numerical solution that can help me to find the y value ?
    thanks
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  2. #2
    MHF Contributor
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    Sorry, your description makes little sense to me.

    exmple: start value zero next value -2 then 1 then -3 ,2,-2, -2,-3,2,-3,1,-1,1,-3,1,-8
    Is there a regularity behind this sequence? Do you need to find this regularity? Or are you given some arbitrary sequence?

    am using a caliper to draw a circle started from the zero point
    What does it mean that a circle "is started from the zero point"? Its center is the origin? It passes through the origin? What is the initial radius of the circle?

    the line that start from zero will not touch the inner circumference of the circle
    Which line? Which circle?

    since am using the graphical solution of this problem
    Which problem?

    could any one help in a numerical solution that can help me to find the y value ?
    Solution to what? Y value of what?
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  3. #3
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    Quote Originally Posted by emakarov View Post
    Sorry, your description makes little sense to me.
    sorry...my english is not very good sometimes

    Quote Originally Posted by emakarov View Post
    Is there a regularity behind this sequence? Do you need to find this regularity? Or are you given some arbitrary sequence?
    this numbers is a kind of pulse that go up and down....i dont want to find the regularity of it's motion in fact i want to know in numbers when the pulse line touch the inner circumference of the the cirucle

    Quote Originally Posted by emakarov View Post
    What does it mean that a circle "is started from the zero point"? Its center is the origin? It passes through the origin? What is the initial radius of the circle?
    the zero poiont is the corner of the page (upper left point in the corner ) u can put the caliper at this point and start to draw the circle but every time a new number come u should increase the width of the caliper gape by one degree

    Quote Originally Posted by emakarov View Post
    Which line? Which circle?
    if we draw a line insted of the red and green squares and that line go up and down u will see a kind of pulse graph

    Quote Originally Posted by emakarov View Post
    Which problem?
    i think after all this u can see what is the problem(i mean by the word "problem" a math problem)

    Quote Originally Posted by emakarov View Post
    Solution to what? Y value of what?
    Y is the end of the pulse line at the moment (or the value) when the pulse line touch the circle
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