MaplePrimes Questions

How do I insert symbols like beta, gamma and so forth? I'm wanting to keep my work looking like the questions I'm working but don't see how to insert symbols that I need. Thanks, glenn
Hello all, I'm new to maple and what I'm trying to do a just griphic the follow. I did it on my TI84 and I get the right answer but I can't get it in maple. When I try to do it in maple all I get is a liner line. y=x(11-2x)(8.5-2x) Thanks for all of the help. Thomas
first read 80 numbers(x[i]) from the file"d:\data.txt",and then solve the equations contain the x[i] and a b c (unknown).Ican not get solution but the Error: Error, (in tools/add) invalid terms in sum help me,Thank you! ************************************ > fd_0=FileTools[Text][Open]("D:\\data.txt", create= false, overwrite= false); > n:=FileTools[Text][CountFloats]( "D:\\data.txt" ); fd_0 = 0 n := 80 > x:=array(1..n); x := array(1 .. 80, [])
Does anyone know if Maple can deal with the concept of generalized coordinates ? I'm now starting to study Lagrangian Mechanics. Any materials or applications dealing with Maple's applicability to this subject may be useful. Thanks,
If I want to make a sequence of remainders of a list X,and the list consists of n/13,where n=1..5,how do I do it using the command map()?
Help! I've got a system of equations that I solve and it has four sets of solutions, ie the output looks like: [[a= ,b= ,c= ,d=- ],[a= ,b= ,c= ,d= ],[a= ,b=- ,c= ,d= ],[a= ,b=- ,c= ,d=- ]] And specifically, I'm only interested in the solutions where both b and d are positive (the second solution in the list above). Is there a way to only solve for that solution or is there a way to extract out that solution? They're not always in the same order so I can't use something like: solve(...)[1] Thank you very much!
Greetings, For a college math project i am plotting a rocket trajectory to mars using maple. First i solved a system of D.E.'s to get the position of the earth (x(t),y(t),z(t)) as a function of time. Then i did the same thing for mars. however when i use these results to solve the D.E. for the a rocket trajectory i get an error. I will post my code. Any help would be very much appreciated. Download 5476_Earth+mars+rockettesta.mw
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I can't believe that the examples for do loops provided by the Maple tutorial does not show how to put more than one state in a do loop. Maple refers to this as a "statement sequence". Yet, an internal search of keyword "statement sequence" in Maple Help yields No Matches. Example: how can I do this simple example: for n from 1 to 10 do x:=2*n y:=3*n end do; ?
Write the equation given to ordered pairs. 1. (1,2) and (9,6) y = 2. (5,2) and (3,4) y = 3. (-5,-5) and (5,4) y = 4. (4,6) and (5,4) y = 5. (-2,0) and (3,5) can sum 1 please help her im having trouble!!!!!!! thnx SOoo much =)
Hello again,

I have another simple question. I have a dynamic simulation that I've put together, and I'm solving the system of equations using "dsolve(odeset,numeric)", and all is going well there. However, I added a "product totalizer" that integrates my exit flow with the command:

Ptotal := ptot(t) = int(Fexit, t)

And that works well if the Fexit is a fixed number in my simulation. However, I wanted to change the Fexit variable at certain points in time, so I used the piecewise command:

Fexit := piecewise(`and`(t >= 25, t < 30), 2, `and`(t >= 35, t < 34), 2, 0)

The simulation looks fine with the piecewise logic, but the integration above does not. It looks like the integration resets itself to zero where the steps occur. So my questions are:
I would like to represent the frequency of the output (values of x, values of y) of the following commands.. restart: with(stats): with(Optimization):stats[random, normald](1); for i from 1 to 10 do z:= Maximize(1/3*ln(x)+1/3*ln(y), {x+y
Hello, I was curious if someone could enlighten my on what's going on here. I put together a set of ODE's and solved them. I then went back and changed some of the parameters, but not the form, of the ODE's. The output of my ODE set now has a "table" comment in it, and I don't know why. For example, one of my initial ODE's is: XMB; (diff(V(t), t))*X(t)+V(t)*(diff(X(t), t)) = .3*S(t)*X(t)*V(t)/(.1+S(t)) after I change some of my parameters, I get this as output: XMB; (diff(V(t), t))*(table([inlet = 0]))(t)+V(t)*(diff((table([inlet = 0]))(t), t)) = -0.1e-1*(table([inlet = 0]))(t)+.3*(table([inlet = 1.0]))(t)*(table([inlet = 0]))(t)*V(t)/(.1+(table([inlet = 1.0]))(t))
What tools are available to help with the search for syntax errors within Maple code? It seems to me the built-in debugger is designed to assist with the testing of Maple code with no syntax errors. While this is important, and useful, the code has to be syntactically correct before this is of any use. Here's the situation I am facing. I have a file with more than 3500 lines of Maple code. Close to 1000 lines is the definition of a maplet, which has to be in one execution group. If there is a single missing comma, square bracket, or parenthesis, Maple will generate an error message and will place the cursor somewhere within the offending execution group. I have seen enough error messages that I know what they mean; I'm not complaining about the error message. My complaint is about the location of the cursor. While the location is deterministic, it is rarely close to the actual location of the error. Does anyone have any useful tips for how to locate the source of syntax errors within large Maple programs?
None of the built-in features of Maple will help me numerically solve the kinds of complicated differential equations I want. I was hoping that Maple's option in dsolve of solving by Taylor series would at least grind out the first nine terms of the Taylor series expansion of the solution y(x) of e.g. x^3 + (y'(x) - 9*x)^(5/(y(x)+2)) + 4*(x-y(x))^(y'(6*x+4)) = 0 subject to y(1)=0. I dumped in functional equations, too, to see if Maple could handle it. Ok. So, for something like this, R(x,y(x),y'(x),y'(6x+4))=0 Maple should be at least able to do the first 9 differentiations to express
My expression is exp(mu*t), and 'mu' is a complex number.
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