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Student Support Forum: 'Finding all roots of a polynomial over a range' topicStudent Support Forum > General > "Finding all roots of a polynomial over a range"

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Brandon
11/28/12 7:09pm

In Response To 'Re: Finding all roots of a polynomial over a ra...'
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Wow I just realized how little I know about mathematica haha. I am new to it and this is definitely a bit overwhelming. When I try to tweak the range of what you sent me I keep getting error messages.

I guess I'll just ask questions one a time:

"ns = NSolve[(uuu /. n -> 100) == 0, w, WorkingPrecision -> 25]"

What does the "/.n --> 100" mean in this statement?

"uuu /. n -> 100 /. ns // Chop"

Same thing right here. And what does the row of zeros below it mean?
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Next, when I attempt to modify the range of n I get an error:
"ListLinePlot::lpn: "Transpose[{Abs[w],Abs[w],Abs[w],Abs[w],Abs[w],Abs[w],Abs[w]}] is not a list of numbers or pairs of numbers."

How can I modify this graph to display a great range of n values?

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Subject (listing for 'Finding all roots of a polynomial over a range')
Author Date Posted
Finding all roots of a polynomial over a range Brandon 11/27/12 8:02pm
Re: Finding all roots of a polynomial over a ra... jf 11/28/12 12:43pm
Re: Re: Finding all roots of a polynomial over ... Brandon 11/28/12 7:09pm
Re: Finding all roots of a polynomial over a ra... jf 11/28/12 7:57pm
Re: Re: Finding all roots of a polynomial over ... Brandon 11/28/12 10:24pm
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