Sometimes it is necessary to distinguish between continuous, discrete and hybrid systems in MapleSim. One example is when you consider generating an S-function block for inclusion in Simulink models. Firstly, how are continuous, discrete and hybrid systems defined in MapleSim? Secondly, how can you confirm the type of a given system in MapleSim?

Any reference documentation would help.

Hello,

I'm getting an error from algsubs that I don't understand...

 

This works fine....

EqD16a := (-w[j]+w[c]+3*w[c]*alpha)*(-w[j]+w)^2/(alpha*(-w[j]+w[c])^3);

 

EqD16b:=algsubs(w=beta*w[j],EqD16a);

 

This fails...

EqD15a := (-w[j]+w)*(-2*w[c]*alpha+2*w[c]-2*w+3*w*alpha-w[j]*alpha)/(alpha*(-w[j]+w[c])^2);
EqD15b:=algsubs(w=beta*w[j],EqD15a);
Error, (in collect/series) invalid expression for series

 

I don't understand why the second fails?

How could I go about creating the fractal fern for which the iteration process is as described here...

http://en.wikipedia.org/wiki/Iterated_function_system

Under the section - Example: a fractal "fern"

 

Its mostly the probability part that would be the biggest problem for me.

Hi, I am working on deriving Inverse Kinematic Equations for my robot. I have 4 simultaneous trigonometic equations in 4 variables. However, Maple is getting stuck when I try to solve these equations. My variables are w,x,y,z. Can anybody please suggest me a way in which I can solve this problem? My equations are a := Cos[w] (Cos[x] (-110 Cos[y] - 170) + 110 Sin[x] Cos[y] Sin[z] - 22) + 110 Sin[w] Sin[y] Sin[z] = x1 b := Sin[w] (Cos[x] (-110 Cos[y] - 170) + 110 Sin[x] Cos[y] Sin[z] - 22) - 110 Cos[w] Sin[y] Sin[z] = y1

Can maple be used to plot a phase portrait of this differential equation? (x,y)' = ( -2x - y , y - x^2 +x) Any light you can shed on the problem will be much appreciated. Thanks!

I want Maple to execute the following code over and over again (exepct for with(combinat) of course)

with(combinat):
unassign(anames(user)):

How do I answer this question using maple?

 

For the curve of intersection of the surfaces

5xzy + xyz + 10e -98 =0

tan(xyz-2) + ln(3x + y + z -7) =0

find at the point (2,1,1)

a) T (unit tangent vector)

b) dT/ds

c) k (curvature)

d) N ( unit normal vector)

e) B (binormal vector)

f) dT/ds

g) t (torsion)

 

Hi
How to get from the differential equation:
diff(x(t), t, t)+c*(diff(x(t), t))+k*sin(x(t)) = 0;
print(`output redirected...`); 
              / d  / d      \\     / d      \                  
              |--- |--- x(t)|| + c |--- x(t)| + k sin(x(t)) = 0

Hi, how can I generate (and plot) an array of points that are defined by a recursive formula, for example the points specified by

Hello colleagues,
Here I have for you two questions:
 How to learn to see the indexed variables, whether they are literal or standard? Without the need whattype:

whattype(x[2]);
print(`output redirected...`); # input placeholder
                                   indexed
whattype(`#msub(mi("z"),mn("1"))`);

Hi all, Is there a feature in Maple to collaborate? I mean: is it possible to work at the same maple file from 2 different computers simultaneously and join the results? It would be great if there's the possibility to work in real-time together, but comparing the files after editing and combining the changes to both documents in one Maple file is already satisfying. Thanks in advance for your advice. Giel

I am looking to plot3d a triple integral, and i seem to be having difficulty. I am using Maple 12 and the cod as follows.

 

EX:

plot3d(int(int(int(y,z=0..5),y=0..5),x=0..9));

Is there a way to use maple to plot the vector field for the differential equation: (x,y)' = ( sin(pi*x) , xy - 1 ) ? Note (x,y)' is a vector, that would normally be written in column form. I'd really appreciate any help you can give, thank you.

I've run into a problem with Maple. When I solve a trigonometric equation, for instance sin(x)=0, it responds with only one solution, even though there are countless. So what I mean is, when I type: solve(sin(x)=0,x) -> x=0 x = 0 is of course correct, but I would really like it to give the general form of the solution for such an equation. My TI CAS calculator responds with this general solution set: x=c*3*pi , where c is a random integer, Z, (any whole number). Is there any way to make Maple give such a respond as well?

View 10874_ode.mw on MapleNet or Download 10874_ode.mw
View file details

I have an ODE that has to be solved over a range of x .....but i have difficulties in formulating the boundary conditions since i have certain constraints on them.

My B.C 1 is t(x) = c + (c-1)*erf(x)

B.C 2 is t ' (x) = (c-1)*(2/sqrt(pi))*e^-x2