I am trying to plot the equations shown in Figures 5 and 6, which are solutions to Equations (14), (15), and (16). These equations are developed in the Lo paper (attached). I am working through the symbolic solution by hand and would greatly appreciate any suggestions on how to set these equations and the graphs of the same in a worksheet. Thank you for the assistance anyone may offer.
Wayne Bell

Download 4865_Lo_p691.pdfView file details
Download 4865_Lo_p692.pdfView file details
I am trying to convert equations from cartesian to polar and spherical expecting Maple to change the variables from x,y and z to r, theta, etc. I presume I am using the wrong commands.
convert(exp(sqrt(x^2+y^2)),polar)
returns the same expression in x and y. What is the correct command?
thanks

I seem to keep running into things in Maple that I just can't get to plot. I have been using Mathcad and am trying to learn to do everything in Maple, but keep finding myself having to go to Mathcad to do even the simplest things. Could someone please help and explain to me what I'm doing wrong?
I have with(plots) and restart() at the top of my page.
I then do this:
g1 := implicitplot(3x^2,x=0..10,y=0..10);
display( g1 );
This results in it just printing the display line again, no graph is shown.
I can get this to work using the plot command but since its not very easy in Maple to print multiple equations on a single graph I have started trying to do them this way. If there is a better way to do graphs then please tell me this as well as I'm trying to learn Maple as best as I can.

I would like to plot a projection using parametric equations:
x=la*cos(fi)
y=fi
fi=

This is to inform you that we are now shipping the newest version of Maple T.A. – Maple T.A. 3.0.
Maple T.A. is an easy-to-use web-based system for creating tests and assignments, automatically assessing student responses and performance. It supports complex, free-form entry of mathematical equations and intelligent evaluation of responses, making it ideal for mathematics, science, or any course that requires mathematics.
The new edition – Maple T.A. 3.0 – comes with increased flexibility in content creation, an enhanced user interface and improved grading and assessment capabilities

How do I parse the response string with Maple TA? I can make my code work just fine in Maple but that is assuming what type of string $response is. If someone has dealt with this before, I would appreciate some ideas. I am asking for three parametric equations and need to seperate them and use all three for determining validity of the answer.

Hello, I am doing some research with solar panels right now and I need to try and come up with equations for a multiple input single output system. What I am doing is taking numbers from a website and comparing to the actual numbers from solar panels I have set up in a field. But the head of the project is wanting to make some unique equations. I can easily do a single input single output by curve fitting or splining the information, but I have never tried a multiple input single output system. Is there a way to do this?
Chris

I'm completely new to maple, and I'm trying to solve some equations that have no algebraic solution but should be straightforward to solve with numerical methods. I'd be most grateful if anyone could offer some advice on how to do this.
For example, I'd like to solve the following two equations for p:
2^(1-p)+(1-x)^(1-p)/(1-p)
and
x^(2-p)-y^(2-p))/(x-y) = (a^(2-p)-b^(2-p))/(a-b)
The attached worksheet contains my unsuccessful attempts.

View 4985_equations.mw on MapleNet
I have a question which has three parametric equations as the answer. I then need to parse out variables from these equations and make sure the 3 equations satisfy 4 conditions. How do I have $response equal 3 different equations? My answer would be coming in as x=$a+$b*t, y=$c+$d*t, z=$f+$g*t.
I would then use the variables a-g in my tests.

Hi everyone!
(I'm Fench, hope my English isn't too bad).
I use Maple to solve non-linear differential equations using a numeric method, and I plot these solutions using the basic:
>slnew := dsolve({set1, set2, a1(0) = 0, a2(0) = 1, (D(a1))(0) = 0, (D(a2))(0) = 0}, {a1(t), a2(t)}, numeric);
>plot1 := odeplot(slnew, [t, a2(t)], t = 0 .. 10, numpoints = 10000);
So far it's ok. However, I'd like to compare the difference between the solutions when the initials conditions are slightly different, say, a2(0)=1.1 . So I use the same procedure to create a plot2, and I use:
>display(plot1,plot2);

I am running Maple 11 with a mac-intel MacBook (13'' screen). I have been running a procedure for plotting a system of differentail equations that depend on an arbitrary parameter. The procedure works well for some "simple" parameters. For some more complicated parameters, the memory count (bottom right hand size) goes from near zero to over 500 M in six seconds ! A message appears: "kernel connection lost", and warns that such problems could be due to firewall settings, but all my firewall software is off.
This procesure on these parameters works just fine with Maple 10 running in a PowerBook G4 (firewall connection also off).

A friend who has Mathematica suggested to me that Maple has no equivalent to the Mathematica Reduce command. Looking at the Reduce command on the Mathematica site, it says "Reduce[expr,vars] reduces the statement expr by solving equations or inequalities for vars and eliminating quantifiers." That sounds a lot like solve( ) to me so I attempted to use Maple's solve command on the following Mathematica Reduce( ) example.
Reduce[x^2+y^2<><>

Dear Comrades,
I'm trying to solve a system of coupled integral equations. Does anybody know how to use IntSolve? And what's the shared library? Do I have to download IntSolve from somewhere? And is this the best way to spolve integral equations if I did?
Regards,
Andrew

June 04 2007
beny 76
I have a system of equations where unkowns are functions of variables
` > eqns:= {a(s,y,z,t)+2*b(s,y,z,t)=0,3*a(s,y,z,t)-5*b(s,y,z,t)=0}; `

I would like to get the matrix associated to the system.
I tested genmatrix but maple returns `equations are not linear `
Anyone have an idea of how to do this?