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I'm new here, so I'm not totally sure this is the right place to ask this. I apologize if it isn't, please let me know in that case.

 

My problem is that Maple won't recognize the built-in command 'complexplot3d'. For example, typing:

complexplot3d(z^2, z = -1-I .. 1+I)

doesn't do anything, and it's displayed again in blue as if it was not a command.

 

Any kind of help would be extremely helpful, as I have no clue of what's going on. Thanks in advance!

Im trying to draw a shpere but it always saying: 

Error, (in plot3d) unexpected option: z = -2 .. 2


this is the equation: x^2+y^2+z^2-4=0

i'm writing this way

plot3d(x^2+y^2+z^2-2^2, x = -2 .. 2, y = -2 .. 2, z = -2 .. 2)


what should I do? this is my first time with this software

 

best from Brazil,
Nina

Hello,

does anyone know a way to combine two plots in one where one is created with ScatterPlot3D (Package:Statistics) and the other one with plot3D (Package:plots)?

 

Normally you would write something like this:

but that only works if the plots are from the same package...

Hi,

 

I am having trouble in plotting the following surface (it is a quite complicated expression, but should be fine).

OwnSurface := [-Re(arctan(exp(I*Pi*(1/4))*(u^2+v^2)^(1/2)))-(1/2)*ln((1+(u^2+v^2)^2)^(1/2)), -arctan(1/((2*(u^2+v^2))^(1/2)-1))+7*Pi*(1/4), (1/8)*ln(u^2+v^2-(2*(u^2+v^2))^(1/2)+1)-(1/8)*ln(u^2+v^2+(2*(u^2+v^2))^(1/2)+1)-(1/4)*arctan(1/((2*(u^2+v^2))^(1/2)+1))+(1/4)*arctan(1/((2*(u^2+v^2))^(1/2)-1))];

plot3d(OwnSurface, u = -.4 .. .4, v = -.4 .. .4, labels = [x1, x2, x3]);

The only thing maple does is plotting a box with a diagonal line. How can I fix this?

 

Is there an elegant way to plot the region between the surfaces z=-y^2 and z=x^2, only on the domain of the XY-plane bounded by the triangle with vertices (0,0), (1,0) and (1,1)?

I am trying to have the output of DETOOLS as 3dpolarplot. As in the following example:

 

EF := {2*(diff(w[2](t), t)) = 10, diff(w[1](t), t) = sqrt(2/w[1](t)), diff(w[3](t), t) = 0}; with(DEtools); DEplot3d(EF, {w[1](t), w[2](t), w[3](t)}, t = 0 .. 100, [[w[1](0) = 1, w[2](0) = 0, w[3](0) = 0]], scene = [w[1](t), w[2](t), w[3](t)], stepsize = .1, orientation = [139, -106])

 

how can I get the output as a polarplot in 3d where, w[2] and w[3] have range 0..2*pi.

Please help in this respect asap.

 

Hello everyone!

Is this a bug that the following two commands work differently?:

densityplot(sin(x*y), x = -5 .. 5, y = -5 .. 5, colorscheme = ["zgradient", ["blue", "green", "yellow", "red"], zrange = -5 .. 5], style = surface)

plot3d(sin(x*y), x = -5 .. 5, y = -5 .. 5, view = -10 .. 10, colorscheme = ["zgradient", ["blue", "green", "yellow", "red"], zrange = -5 .. 5], style = surface)

The second one works fine in that if you increase the magnitude of sin(x*y) (e.g. 3sin(x*y)) the coloring changes accordingly. But the first one plots sin(x*y) or 5sin(x*y), etc. just the same!

Many thanks for you comments in advance!

So, I have the following inputted into Maple 2015, but the plots are not displaying.  I've double checked the syntax, but I don't see anything wrong.  Any thoughts?  Thank you!

 

plot3d(cos(theta)^2, phi = 0 .. 2*Pi, theta = 0 .. Pi, axes = BOX, style = line, grid = [50, 50], view = [-1 .. 1, -1 .. 1, -1 .. 1], coords = spherical);

 

Trying to plot that here actually displays the plot, but it isn't showing up in my Maple worksheet.

how draw a line x+y = 1 on a sphere x^2+y^2+z^2 = 1 in maple

Let us consider the maximum value of the polynomial

x^4+c*x^2+x^3+d*x-c-1

on the interval x=-1..1 as a function g of the parameters c and d. General considerations suggest its continuity. However, a plot3d of g does not  confirm it.  Also the question arises "Is the function g(c,d) bounded from below?". Here is my try with the DirectSearch and NLPSolve:

 

restart;
``

g(10, -10)

9.

(1)

plot(x^4+x^3+10*x^2-10*x-10-1, x = -1 .. 1)

 

plot3d(g, -5 .. 5, -5 .. 5, grid = [100, 100], style = surface, color = "DarkOliveGreen")

 

DirectSearch:-GlobalOptima(proc (a, b) options operator, arrow; g(a, b) end proc, {a = -1000 .. 1000, b = -1000 .. 1000}, variables = [a, b])

[-167.208333252089, Vector(2, {(1) = 999.9999999975528, (2) = 166.20833325208952}, datatype = float[8]), 815]

(2)

DirectSearch:-GlobalOptima( (a, b) -> g(a, b), variables = [a, b])

DirectSearch:-GlobalOptima(proc (a, b) options operator, arrow; g(a, b) end proc, variables = [a, b])

Error, (in Optimization:-NLPSolve) invalid input: PolynomialTools:-CoefficientVector expects its 1st argument, poly, to be of type polynom(anything, x), but received HFloat(HFloat(undefined))*x^4+HFloat(HFloat(undefined))*x^3+HFloat(HFloat(undefined))*x^2+HFloat(HFloat(undefined))*x+HFloat(HFloat(undefined))

 

``

 

Download bound.mw

 

I have an equation for r(t) that involves 3 (slidable) constants; an equation for phi(t) that involves the same three constants and is written in terms of arctan; theta is a slidable constant. How do I plot this on an x,y,z plot? I want an animation in terms of t.

plot3d(x^2+y^2, x = -1 .. 1, y = -1 .. 1);

i searched this 

http://www.maplesoft.com/support/helpJP/Maple/view.aspx?path=NAG/d06abc

and

DelaunayTriangulation(points) in help file

is there any example to show how to use these?

 

(in plot3d) the legend option is not available for 3-D plots

Is there other method to replace the legend option?

 

---------------------------

To the world you may be one person,but to one person you may be the world!

How I can sketch a line with equation (x-2)/3 = (y-1)/4 = (z-3)/3 in three dimentional space?

Hi,

Can anyone please suggest a way to set the zoom factor for a 3D plot from the plot commands or using DocumentTools or in some other way that doesn't involve the interactive tools?

What I'm trying to achieve is the following:

I'm developing MapleCloud worksheets for a course I'm teaching and want to give my students several 3D plots to interact with through their web browser.  When I make the plots, Maple determines the scaling so that boxed axes with labels will fit in the area of the plot component.  However, I'm making plots with axes=none that look better at a higher zoom factor (the corners of the unseen boxed axes would be out of the plot area but all the plot components still fit) and I'm keen to create the plots that look like this if possible.

My ideal solution would be for there to be a zoomfactor option for the plots[display] command or to be able to use some code like SetProperty("Plot0",zoomfactor,1.25) but I haven't been able to find a way to achieve this.  The closest I found was setting the viewpoint option, but that locked the view, preventing rotation, and I want to just set the initial view.  Is there some other method I haven't found?

Thank you for your help,

Alex

 

 

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