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| Newsgroups | comp.soft-sys.math.maple |
| Date | Tue, 24 Oct 2017 00:07:55 -0700 (PDT) |
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| Subject | Re: Plotting polynomials to hard for Maple? |
| From | acer <maple@rogers.com> |
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On Monday, October 23, 2017 at 5:36:09 PM UTC-4, Peter Luschny wrote: > plot(5*x^4-20*x^3+30*x^2-20*x+5, x=0..1); > > https://imgur.com/a/UMVI2 As usual Peter does not mention which Maple version he's using here. This makes it awkward to figure out the nature of the problem. I'll make a guess. When the 2-D plot option `smartview` was introduced in Maple 16 it had a few problems. This option was `true` by default, one of the problems is that it could be too conservative in estimating that the curve had become steep enough to warrant limiting the displayed range. If one executes Peter's example using, say, Maple 16.02 then the vertical range displayed goes from 0.0 only to about 2.5 (very much like in his linked image). Specifying the option smartview=false explicitly resolves the problem in Maple 16.02. Eg. plot(5*x^4-20*x^3+30*x^2-20*x+5, x=0..1, smartview=false); Improvements to the underlying scheme already make Peter's example show the full range from 0.0 to 5.0 in Maple 17.02 and onwards.
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Plotting polynomials to hard for Maple? Peter Luschny <peter.luschny@gmail.com> - 2017-10-23 14:36 -0700
Re: Plotting polynomials to hard for Maple? William Unruh <unruh@invalid.ca> - 2017-10-24 03:59 +0000
Re: Plotting polynomials to hard for Maple? Peter Luschny <peter.luschny@gmail.com> - 2017-10-26 02:39 -0700
Re: Plotting polynomials to hard for Maple? acer <maple@rogers.com> - 2017-10-24 00:07 -0700
Re: Plotting polynomials to hard for Maple? Peter Luschny <peter.luschny@gmail.com> - 2017-10-26 02:50 -0700
Re: Plotting polynomials to hard for Maple? William Unruh <unruh@invalid.ca> - 2017-10-26 16:12 +0000
Re: Plotting polynomials to hard for Maple? Juergen Barsuhn <jw.barsuhn@t-online.de> - 2017-11-01 16:12 +0100
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