Hello

I can't find a solution on the internet for this question.

I want to rotate a curve around the x-axis. That means a 3D plot.
Does anyone know how?

Thanks.

I worked a problem in my textbook using maple.I define two differential equations sys1:=[dy/dt=...,dx/dt=...] and its linearize point lin_point:=[...],then using linearize command,I obtained a state space description of the system.Now,I want to using state space description to get transfer function of the system,how can I do it directly without retype the state matrices a,b,c,and d manually?  

Thank you!

Hi

My computer has 6 GB RAM and works with Windows Seven 7 (64 bits). When I am running my MAPLE program(Version 12), the MAPLE software needs the large amount of memory. But when the consumed memory exceeds over 2 GB, the CPU and computation  stop. Even if I used the Command {kernelopts(datalimit)}, the software did not allow me to use the memory more than 2097100 KB.

Okay I don't know why, but at some point my document went crazy somehow, so I closed it and when I opened it again it was like this ... the whole document, all what I had made, it was in one single line... =/

Just like this:

http://img827.imageshack.us/f/bugallmathinonelinewtf.png/

Can anyone help? Please... if I copy paste it to like word, I get it all shown, so it IS there..

I am trying to get the output listed into a vector or list, but I am unsuccessful. I get the error code "improper sequence". but the expression works:

N:=24

while N>1 do if evalb(type(N,even)=true) then N:=N/2;print(N);else N:=3*N+1;print(N);end if;end do;

The output generated is:

12

6

10

5

16

8

4

2

1

I would like to have the output as a list or a vector with two numbers,...

Hi,

I would like to create a 3D plot using plot3d, however the function I'd like to plot is only defined on the integers and the arguments to plot3D define a range of real numbers.

I woul d appreciate any ideas on how to create this plot.

Thanks,

David

I am trying to solve this set of equations ,but i have spent a lot of time rewriting the equations and changing the signs..but i cant get rid of this erroe and solve it for the unknowns.....could anyone tell me what am i doing wrong ?

I made a model in MapleSim, and I want to analysis it in Maple.
But there was an error when I used the 'get equations' buttom.

and my piecewise equation is 

Is there any problem to this equation?
I really didn't know how to solve it.

Hi

I'm trying to use maple to caluclate the product of eight 4x4 matrices. I need to find all the different permutations of these matrices so that means that there are 8!=40320 in total (I am multiplying all the matrices together but in all thier different orders). I can write a simple program with loops to find the products of say three of the matrices but when I try to create a program that calculates the full product of all eight then maple stuggles ...

I have Windows 7 on my laptop.  When I put the Maple disk into my DVD drive, it says the disk is blank.  I took it back to my school and it works fine on their computer.  Any suggestions?

Hi,

I have downloaded the lead acid battery model from the link http://www.maplesoft.com/applications/view.aspx?SID=34125. I have made the whole system as a subsystem block and tried to generate a simulink sfunction block, but I was not successful. I am getting the below error while doing so.

 Error in Component Button43 with caption "Generate to Simulink":
(in MapleSim:-GetInitialConditions:-GetInitialConditions...

I have a problem understanding how the below reasoning works
for Bruss article “Sum the Odds to One and Stop,”

i) I would like to understand the die problem and more specificaly
why the probability is k(1/6)^1*(5/6)^(k-1). I have a hard time understanding this

ii) How can I apply this reasonong to a coin toss example?


I have managed...

Hi everybody:

I have the following problem. I obtained an asymptotic solution of a hard problem. The final result is a Maple procedure with five arguments; this function has hundred of term and it works beatifully in Maple. However, we need to convert this solution to C or Fortran code and  I am not able to do it.

After the sentence: Fortan(functionname, optimize, output="filename")

I get the following answer

Error, (in PrintTarget) assigning...

I have a worksheet for my students which implements a number of formulas for vector-valued functions such as unit tangent vector and curvature.  All in terms of parameter t. 

Then in some cases we want to evaluate them for a specific value of t.  It works to say t:=2 and then recalculate the expressions.  But after this, what if I want to set t back to no value i.e. make it a variable again?  I have a solution:  delete the line that set...

Hi,

I have a large expression of 10 variables that contains many rational terms. I would like to manipulate it from the form a^2*b^2*c^(-2)*d into for example ((a*b)/c)^2*d. And I want to do this for all terms and combine all variables of power 2.

I know how to do this for arbitrary power a^n/b^n to (a/b)^n but since I have n=2 maple automatically writes (a/b)^2=a^2/b^2 which is what I don't want.

Many thanks