Maple Questions and Posts

These are Posts and Questions associated with the product, Maple

Hi. Solving a problem of non-linear oscilations of thin string I met a PDE with unusual bcs at the right side of the string: 
((diff(xi(x, t), t))^2-a1-b1*x)*(1+(diff(phi(x), x))*(diff(xi(x, t), x)))+c1*(diff(xi(x, t), x))*(diff(xi(x, t), t))*(2*(diff(phi(x), x))-(diff(xi(x, t), x)))*sqrt(1+(diff(xi(x, t), x))^2) = 0 , where phi is known function. Can...

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Your worksheet may be incomplete"

Hi, I use maple 12 for mac, I have an exam at 9am, it's almost 3am and my whole exam notes (open "maple" exam, as opposed to open book) have just corrupted.

PLEASE HELP ME.. :(

2p81_final.mw

Download 2p81_final.mw

 

Hello

 

i want to simplify this expression (f@f@...@f@f)(x)

f is repeated "n" times

e.g: for n=3

we found (f@f@f)(x) .

 

help me please.

Hi,

I would like to calculate the inverse fourier transform from this: 

fourier(laplace(g(x, t), t, s), x, k) = exp(-s*`&tau`-I*Zeta*k)/(s+a^2*k^2)

And I get this:

 

f(t)=(cost,sint,cos2t)

I need necesary commands in order to draw to f( t)...'s tangent at t=pi/3. Could you help me

Hi

I'm solving a differential equation which has a boundary at infinity, when I add this third condition it returns nothing. Of course I it's easy to solve by hand but it should be done in a loop. can you give me a hint on this?

Thanks

Hi guys

i have a problem to drawing this function

problem is F(r,theta)=sin(6r) /6r   IF r is not 0

          and F(r,theta)=1               IF r is 0

Thanks for your helps 

 

 

Hello .

I need your help please .

how can i solve this kind of equations like : 61*a^2+1=b^2

I would like to index Variable names like how it is common in physics (just as an addition to the variable name to distinct between say ta and tb just as two different times). However i am not sure how to do this and make maple treat for example ta EXACTLY like if it would be called ta.

int(1/2*m*(-x[b]+x[a])^2/(-tb+ta)^2,t = ta .. tb)

is evaluated but

int(1/2*m*(-x[b]+x[a])^2/(-t[b]+t[a])^2,t = t[a] .. t[b])

I'm trying out this example code, which I have succesfully used before, but now it's giving me this error. I tried with the simplest example, but i still get the error. One answer to this topic was an "extra space" in the definitions, but i've checked with and without spaces and i still can't find what is wrong... Anyone has any ideas?
thank you

> with(DEtools):
> ode1 := d*x(t)/dt = x(t);

d x(t)
------ = x(t)

Hello Everybody.

Im new to Maple, so i have a couple of questions. In the last few days I have learned the basic of Maple, and now i would like to solve an differential equation.

The Math question is:

Enter the solution of differential equation:

http://www.studieportalen.dk/forums/ShowFile.aspx?id=1122047

In the link i have put in the informations from the math question.

f(t)=(3sin2t,4cos2t) this function. t=pi/6   tangent line ?

Hi, i'm fairly new to maple and i'm trying to create a list of equations to solve but I can't see where I'm going wrong.

rho_in := fp_5 + fp_7 + fp+8

rho_out := fn_4 + fn_6 + fn_9

Hi,

I am new to Maple and intended to solve a differential equation (at least numerically) but i encountered some problems. I attached the Maple file. Equation 1 is the DE, which has the general solution seen in (2).

The general solution can be taylored to match certain boundary conditions (see (3)) which in this case are y(5)=1 and y(10)=5. I eventually plotted the function.

However when i tried to obtain a numeric solution i got an error from Maple...

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