Hi everyone,

I am having some trouble separting terms in a pretty gnarly PDE.  I have a fairly complicated 2+1 PDE with auxillary conditions that I am trying to solve with a formal separation of variables approach.  I have a PDE that looks like this:

Hello everybody,

I look for modeling an inverted pendulum in 2D. ( I would like to see the beam linking masses moving).

I have already calculated the equations of the motion. I know with MatLAB and Simulink a thing similar is possible but I would like to keep on using it Maple.

Is a such modeling is possible with Maple?

Many thanks,

Ternox

I uploaded to my file section a file called "Kill and Imprison Order""

Thanks to your help, this program works. I can specify an arbitrary order, such as [4,6,1,15] of players who kill or imprison other players. The program will then eliminate other players given player 4 gets to kill and imprison first, then player 6, and so on. However, I now need to test this in a for-loop over ALL permutations, or over a selected subset of the set of all permutations, of all the players.  Is that possible in Maple?

How do I delete files I have uploaded in my file section?

Is it possible to convert Pa*m^2 to Newton? (5) 13200. m Pa > convert(13200.*m^2*Pa, 'Units', 'N'); %; Error, (in Units:-Standard:-convert) unrecognized conversion > I don't know how to convert this to Newton (In maple), and I know that it is possible in the real world. Any help available? I know how to do it if I don't use maple or input my own units

help! How to make Maple cancel the common expressions in both
denominator and numerator?

As you could see, there is a g^(2/3) which is a common factor...

http://yfrog.com/0rexpression2j

I really want it to be removed.

Thanks a lot!

 

we have the following:

  CM := MultiSeries:-series((c[1]*e+c[2]*e^2+c[3]*e^3+c[4]*e^4+O(e^5))^m, e)

we have the following:

CM := MultiSeries:-series((c[1]*e+c[2]*e^2+c[3]*e^3+c[4]*e^4+O(e^5))^m, e)

CM := c[1]^m*e^m+c[2]*m*c[1]^m*e^(1+m)/c[1]+(1/2)*m*(2*c[3]*c[1]+c[2]^2*m-c[2]^2)*c[1]^m*e^(2+m)/c[1]^2+(1/6)*m*(6*c[4]*c[1]^2+6*c[3]*c[2]*c[1]*m-6*c[3]*c[2]*c[1]+c[2]^3*m^2-3*c[2]^3*m+2*c[2]^3)*c[1]^m*e^(3+m)/c[1]^3+O(e^(4+m))

Hi all,

 

I am helping a friend.

Please see the two expressions that we would like to convert from Maple into Matlab:

http://yfrog.com/jdexpression3j

 

In the first one, why doesn't Maple first calculate g1^(2/3) and g2^(2/3) as common expressions, then use them to calculate the whole expression?

The (0.1e1/0.3e1) stuff looks very bad.

 

In the second one, we just couldn't get Maple to cancel the common factor g1^(2/3) in both numerator and denominator before doing the conversion to Matlab.

Initial conditions,     x(0)=2, D(x(0))= -2

D= differential

D2x +5Dx +4x = delta( t - 2 )
 

 

I want to check my answer in maple but i cant get it to work.

 

This is the answer i gt by hand

 

x = H( t - 2 ) ( ( e ^ - 4 ( t - 2 ) + e ^ - ( t - 2) ) / 3 ) - 4 / 3 e ^ - 4 ( t - 2 ) + 10 / 3 e ^ - ( t - 2 )

 

I have this code and to test if it works in TextField1 next to the label "MATRIZ A" I enter

I'd like Maple to see that the derivative of p1 with respect to X includes p1 and p2

> p1 := exp(a*x)/(exp(a*x)+exp(b*x)+1);

> p2 := exp(b*x)/(exp(a*x)+exp(b*x)+1);
> m := eval(diff(p1, x));
> n := expand(m);
I see that algsubs won't work along the lines of

   algsubs(exp(a*x)/(exp(a*x)+exp(b*x)+1)=p1,n)

because the substitution is not a polynomial.

any other way to do this?

 

 

Hi

I have the curve: f(x) = 1/x^3.

I want to find the coordinates of a point on this curve that is the nearest to the point P = (0,1)

How can I find this with Maple?

thanks, Anders

 

how to plot the second picture,for the area is that with abs