Hi,

I want to solve this differential inequation in maple please help me.

diff(N(t),t)-mu*N(t)<=Pi;

At first I wanted to post this message as a response to a question

http://www.mapleprimes.com/questions/136153-AnimateDisplay 

But for some reason the message is not loaded.

Look at the example of animation of astroid. First you need to create animation frames as separate graphical structure (in my example - it is E[k] ). And only then by  plots [display]

I want to animate the display of a polygon. It's the platform of a stewart gough rig. Have 200 poses stored as Platform_i i i=2..200. the Base is static( obiviously). Haven't been able to figure out how to get    animate(display .....) to work. The work sheet just contains copy/pasted commands. The time period for the animated display is about 10 seconds but real time is not that important. How do I get this to work?

Suppose I have a matrix M, with rational entries. I need to go row by row and scale each individually by the smallest possible integer such that the entries in each row are integer-valued - anyone have an easy way to do this? It's a large matrix.

i do have two equations containg two pararmeters, i need to exclude one parameter, then substitute it in the second equation and then differentiating the first equation which contains now one parameter, then solve it for that parameter.

i actually did it, but fsolve function does not work with me , can you help me please

I have a symbolic expression of the form:

Hi, I was trying to carry out a Sybolic integration "u1" as below:

> assume(0 < ct, ct < cl);

> u1 := int(int(sin(omega*(ts+ys/ct))*Heaviside(t-ts-ys/ct), ys = H-cl*ts .. ct*ts), ts = H/(cl+ct) .. (H+cl*tau[l])/(cl+ct));

and I use a special case "u1test" to test if u1 is correct:

> u1test := int(int(sin(omega*(ts+(1/3140)*ys))*Heaviside(t-ts-(1/3140)*ys), ys = H-6300*ts .. 3140*ts), ts = H/(6300+3140) .. (H+6300*tau[l])/(6300+3140));

(a colored band on a torus)

hi

I have a problem when i want to write some data on a file.

the main program is work,but when it wants to write,this error is shown:

Error,invalid input: writedata expects its 2th argument, data, to be type of {set,hfarray,list,matrix,array(1),list(list)}, but received HFloat(-0.08716693)

the program is:

restart

fd:=fopen("e:/teta.txt",read)

fg:=fopen("e:/c.txt",write)

g:=readdata(fd,3)

with(linalg)

Mapletrighelp.mw

Hi all,

I am calculating the following :

Fa:=(Fa1*cos(wt))*cos(theta)

Fb:=(Fa1*cos(wt-120))*cos(theta-120)

Fc:=(Fa1*cos(wt-240))*cos(theta-240)

Ftotal:=Fa+Fb+Fc

Ftotal:= Fa1*1/2(3*cos(wt-theta)+cos(wt+theta)+cos(wt+theta-240)+cos(wt+theta-480))

Problem:

The exact solution I am looking for is: Ftotal:=3/2*Fa1*cos(wt-theta...

when i try to solve the equation given below the following problem occured. pleae tell me how can i solve this boundary value problem.

> ode := diff(y(eta), eta, eta, eta)-(diff(y(eta), eta))*(diff(y(eta), eta))+y(eta)*(diff(y(eta), eta, eta)) = 0;
                                    ...

Hi, I am new to maple.  Is it possible to use desolve to obtain a numerical solution that gives both the solution y(x) and its derivative.

I am OK with sol:=dsolve({eq,ic}, numeric).  This will give me y(x), but I also need y'(x).

Thanks

Chris

It appears the wikipedia entry for Maple (software) is deeply in need of an overhaul to reflect new graphic modifications and for better eye candy. 

Not that it really matters but the graphics there are rather primitive and outdated. 

Dear All

Hi

I want to solve a non-homogeneous ordinary differential equation by Maple 15.

I tried solving that by issuing the following commands; however I could not.

> Digits:=40:

I am Maple admin for the Universiity of Tennessee site license.  I currently have two users who cannot open Maple 16.  This is the error they see:

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

The window header says:   Java Virtual Machine Launcher

The message in the window says:  Could not find the main class: Files.   Program will exit.”

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