I know the general idea of the Sierpenski's Carpet I was just wondering if there was a way to make Maple produce this plot? any help would be greatly appreciated

Hello! I made a maplet with the MapletBuilder for displaying a worldmap or - if requested - a globe with locations of earthquakes in a selected period of time. Before that I programmed a maple worksheet to this subject. The maplet is build like this: First there is a Plotter-Window followed by two Radiobuttons for choosing between two different graphic renditions (2D and 3D). For choosing a period of time I used DropDownBoxes. The starting date and finish date consist of 3 Boxes each to choose month, day and year separately. To confirm the dates and to plot the relevant map there's a ClickButton.

I want to solve for the intersecting curve between two surfaces. The figure demonstrates what I mean in a plot, I'm interested in the curve between the red and the blue areas. (The surfaces are seen from above.) Ideally, I would just ask Maple to 'solve(surface1>surface2)', where the surfaces would depend on some parameters. This do, however, not work. (The functions (surfaces) has up to 7 input parameters, and combines heavyside functions and the max function.) I'm sure there is a way, though. Given my ignorance, I'm now pursuing to 'estimate' the curve, by somehow reading off the intersection numerically and using some regression or whatever. Any idea how to do this efficiently?

A new version of Plouffe's Inverter was announced by its author today in the usenet group comp.soft-sys.math.maple . That usenet posting gave this link to maple code for the inverter.

It also said this, "As usual, I would like to mention that this program is FREE and can be distributed at will, I just wish that the source is mentioned. Simon Plouffe"

if you think you can help me out... let me know.. im in calc 1 and i have lots of questions and some stuff i wanna make sure i got right! id really super duper appreciate it! :) sascha!

hello, i have some problems with maple. i need to know an inflexionpoint of the following function: f:= x->((x^3-x+1+(6/30))/(x^2-1)); i derivate till f'''(x) with the following commands dv1: D(f)(x); dv2: (D@@2)(f)(x); dv3: (D@@3)(f)(x); and here starts my problems. maple seems to do nothing. for dervation f'(x) and f''(x) it shows me nothing for derivation f'''(x) just a 0. i suppose the mistake is in front of the computer :O. so what is wrong? here my exact commands: restart; f:= x->((x^3-x+1+(6/30))/(x^2-1)); df1:= D(f)(x): df2:= (D@@2)(f)(x): df3:= (D@@3)(f)(x):

Hi I have constructed a do loop to represent an epidemic described by 3 equations. I have plotted these using the initial conditions given. If i want to identify the values of S[k], I[k] and R[k] at k=60 how do i enter this? And how do i find out the exact point where the epidemic reaches its peak?

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Hello, I have a question concerning PDEs with initial / boundary conditions. Now, I am trying to solve this PDE. The general solution to my PDE is achieved by: governing equation : the homogeneous diffusion equation is > PDE := diff(c(x,t),t)=diff(c(x,t),x,x); the boundary condition are > BC1 := c(0,t)=0; > BC2 := c(0,L)=1; the initial condition is > IC := c(x,t)=1; I want to solve above equation by using maple software(Currently I am using Maple 10). In this case I want to find the final expression. If you have any idea to lead this problem using this software, please help me help.

I had the worst physic's teacher in High School so we did not learn a single thing. If you guys could help me I'd appreciate! I need to find the angle if A throws a rock at C. He throws his rock at 20m/s. C is on a 8metres building. A is 10metres away from C. With which angle (theta) A needs to throw his rock to hit C. Situation: http://img522.imageshack.us/my.php?image=problemkk3.jpg Equation: http://img519.imageshack.us/my.php?image=physicequationpa1.jpg

Usually exporting from classic interface as HTML works quite well (ok, not all the finer things, but with good (!) graphics and it is painless). Now I want to hide input (for readers not used to Maple that might be better), but with M11.02 the input is exported anyway. Any workaround (except using an editor for the HTML result) ?

Hi, I'am trying to solve a nonlinear (spring) ODE like: > ode := A*(diff(x(t), t, t)) + B*(diff(x(t), t)) + R(x(t)) = 1; ...So, I defined a nonlinear (elastic-plastic) resistance function R(x(t)): > xLast := 0; RLast := 0; Rmax := 1; > R := proc (x) > local RR, dx; > global xLast, RLast, Rmax, K; > dx := x-xLast; > RR := RLast+K*dx; > if Rmax <> elif RR <> end if; > xLast := x; RLast := RR; > return RR; > end proc; ...Set up the ODE: > xLast := 0; RLast := 0; > ode := A*(diff(x(t), t, t))+B*(diff(x(t), t))+R(x(t)) = 1;

Is it possible to dislay two functions in different scales in the same diagram? E.g. one function taking values in the range 1..10 and another taking values in the range 0.01..0.1. The reason I want to do this, is to display functions (on different scales) which interact in the same diagram so they can be easily compared. I can, of course blow one function up, but I find that slightly dissatisfying, as the numbers loose their meaning, and understanding the plot becomes more difficult. If this is not possible, is there a way I can effectively export the ploted 'data' and redraw the graphs in another more suitable program? Any tips or help appreciated.

Hi! I'm searching for a useful guide of the MapletBuilder (for Maple 11). I know how to create Boxes 'n' Stuff. Now I want to assign commands to the buttons,which should be executed by pushing them but I don't know how to do that. By that I mean where to put them and what kind of commands exist or do I have to use. I need a guide with some examples. It would be great if anyone could help me. Thanks paience

Dear All, I seem to be having trouble with 0^n in maple, can someone help? Essentially, I have a complex function that simplifies under certain conditions to

f:=1.*0.^n/factorial(n);

but

sum(f,n=0...0);

gives 0. Whereas,

evalf(subs(n=0,f));

gives 1. Any ideas? Thanks Colin