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If I have two series, both increasing predictably with different initial values, is there any way to determine if the two will have the same value at some point.

For example:

-.7  ..  .2 -.4  ..  .7 -.1  ..  .12  .2  ..  .17  .5  ..  .22 
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    If the first sequence is a(n) and the other is b(n) then sole the equation a(n)=b(n) for poistive integers n2012-11-08
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    Your second column, not so predictable --- differences are .5, -.58, .03, .05.2012-11-08
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    My bad, it's four in the morning.2012-11-08
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    @Amr, I am having difficulty understanding what you are trying to say. If the first series is $.3(n)+.3=g$ and the second series is $.5(p)+.5=v$. How will I know if g will ever equal v.2012-11-08
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    .3(n) + 3 = g ? Then it should be .6 .9 1.2 etc. I dont understand this question at all2012-11-08
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    Char, now that you've had a good night's sleep, maybe you'd like to edit the body of your question so the numbers are right, and also edit in an answer to the questions raised elsewhere about whether the value that comes up twice has to be all on one line.2012-11-08

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