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 Yearling
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  • 0 posts edited
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  • 70 votes cast
Aug
11
awarded  Yearling
Aug
11
accepted Adding colors to graphic objects made with the new function AnglePath
Aug
11
answered Adding colors to graphic objects made with the new function AnglePath
Aug
9
asked Adding colors to graphic objects made with the new function AnglePath
Jul
28
awarded  Revival
Jul
28
comment How do I find the area between two polar curves?
@2012rcampion if I slightly modify this region say Area[ImplicitRegion[ 6 < Sqrt[x^2 + y^2] < 4 + 4 Cos[ArcTan[x, y] && x < 7 ], {x, y}]] (Try it with Show) even with MMA 10.2 I'm back to the error message Area::nmet: Unable to compute the area of region Imp.... It beats me your solution cannot be generalized even after 3 successive MMA versions since this new function has been announced!
Jul
28
revised RegionPlot of an area inside a polar plot (or its equivalent parametric plot)
updated after MMA 10.2 upgrade
Jul
26
comment How do I work with Root objects?
Using MMA 8 and your state of the art answer, I had no problem at all. But with MMA 10.0 some output format changed and I had to do some modifications to get again your answer.For example s = Solve[(3 - Cos[4 x]) (Sin[x] - Cos[x]) == 2, x, MaxExtraConditions -> 0] /. C[1] -> 0. But I now have 2 real solutions instead of 3 (-Pi is missing). Do you know which MMA version returns the correct answer?
Jun
17
awarded  Teacher
May
25
comment Plot draws list of curves in same color when not using Evaluate
I am sorry to have misled you, I genuinely thought to have a 10.1 version: I was confused between $Version which returned 10.0 and $ReleaseNumber which returned 1 (and I concatenated these 2 to make 10.1) and I forgot to give a feedback . I upgraded now to 10.1 and these errors are gone but others are still present (please look at my latest question to which I gave my own answer since no answer was given after 4 months).
May
18
answered RegionPlot of an area inside a polar plot (or its equivalent parametric plot)
Apr
9
comment Plot draws list of curves in same color when not using Evaluate
The other two methods also get the same error.
Apr
9
comment Plot draws list of curves in same color when not using Evaluate
To which V10 version does your Mathematica 10 update apply? With MMA V10.1 and Plot[{1, ## &[2, 3], 4}, {x, 0, 1}, PlotRange -> {0, 5}, PlotStyle -> Thick]' I get an error (Identity::argx: Identity called with 2 arguments; 1 argument is expected`
Apr
1
comment Proper way to Plot a single function in two different styles?
@Simon Woods Your useful splitplot and splitsyle functions don't work anymore with MMA V10. Can it be easily updated ? Thanks
Dec
28
revised RegionPlot of an area inside a polar plot (or its equivalent parametric plot)
added 66 characters in body
Dec
28
asked RegionPlot of an area inside a polar plot (or its equivalent parametric plot)
Oct
1
comment Fitting ellipse to 5 given points on the plane
Your ellipse definition is in fact the general equation of a conics - it is only an ellipse if the discriminant is negative. How does your answer take this restriction into account? Thanks
Oct
1
comment Fitting ellipse to 5 given points on the plane
With MMA V9 I do not get the right answer, for example f (-0.275185 + 1. x^2 + x (0.189022 + 0.566953 y) + 0.1281 y + 0.397124 y^2) == 0 is the equation of the ellipse which is returned. The parameter f is not resolved.
Sep
26
comment Finding length of intersection of two surfaces
On the contrary, to me your approach is quite elegant, concise with a flair for mathematics. And it works OK at least since MMA V5.
Jul
2
awarded  Curious