Hi,

I have a list of sets eg. L:=[{a},{b,c},{d,a,f},{b,d}] and I'm having problems doing operations on it. 

I want to be able to take the first element (a here), look for the next occurrence of it and return what is in the set with it (here d and f).

However I can't seem to use Search or Occurrences as they consider the sets themselves to be the elements. For instance Search(a, L) returns 0. 

What can I do?

I have saved array calculated with Digits:=5000. Now I want to save it with Digits:=2500. I tried this

read "C:\\math\\lambda5000.mpl";

Digits := 2500;

LArr2500 := LArr5000;

save LArr2500, "C:\\math\\lambda2500.mpl"

But this don't work...

Hi,

I have a problem solving two equations with trigonometric functions. They are as follows:

eq1:= 9180pi - 16295.070arccos(-1.0 + 0.001356852103xu) + 22.1100sin(-1.0pi + 1.0arccos(-1.0 + 0.001356852103xu))(737.0-xu)+7115.0700arccos(-1.513347022 + 0.002053388090xu) - 14.6100sin(-1.0pi + 1.0arccos(-1.513347022 + 0.002053388090xu))(737.0-xu) + (0.1050As(xu-125)/(1349-xu)) - 0.1050As = 1688

eq2:= 9180pi- 16295.070arccos(-1.0 + 0.001356852103xu) + 22.1100sin...

t0 := arccosh(lambda/(s*(1-lambda)))

f := int(sqrt(lambda-s*cosh(t)/(1+s*cosh(t))), t = -t0 .. t0)

s := 1/10

with(Student[Calculus1])

g := f-Pi*(0+1/2)

Roots(g, lambda = 0 .. 1, numeric)

Why does maple say:

Error, (in mod/Expand) too many levels of recursion?

r(t) = RootOf(Int(_a/sqrt(-4*_a^4+5*_a^2-1), _a = 1 .. _Z)+t), r(t) = RootOf(Int(_a/sqrt(-4*_a^4+5*_a^2-1), _a = _Z .. 1)+t), r(t) = RootOf(Int(_a/sqrt(-4*_a^4+13*_a^2-9), _a = 1 .. _Z)+t), r(t) = RootOf(Int(_a/sqrt(-4*_a^4+13*_a^2-9), _a = _Z .. 1)+t)

ist my result of an ODE

g := dsolve([oder, r(0) = 1, (D(r))(0) = 0])

oder := diff(r(t), t, t) = 4*sqrt(1-(diff(r(t), t))^2)+(1-(diff(r(t), t))^2)/r(t)

Now usually maple gives me one solution, so I can just plot with

Hi all,

This might be more a mathematical problem than a Maple problem, but still maybe somebody could help me out.

I am trying to solve the differential equation of an Euler-Bernoulli beam with an distributed load (q1) and a varying axial force (N(x)). The following equation applies:

How we export the Maple Animation in Microsoft Power Point. Please help as early as possible

Animation.mw    PPT.pptx

I have a rather large number of combinations to search and would like to use Task in order to take advantage of my multicore machine. The easiest way it seems to me to use Task to break up the total number of combinations into say, four pieces. Any one familiar with Task have any suggestions?

Hello Folks:

I'm trying to generate a plot of a procedure that uses fsolve and I get the following error message:

> implicitplot(IC(2, x, y, 1, 1), .1 .. .9, -1 .. 1, filled = true, numpoints = 10);
Error, (in fsolve) x is in the equation, and is not solved for

It seems that Maple is passing x to the procedure IC and not the numerical value of x.

I tried, without success,  to delay the evaluation as suggested here

I have some automatically generated maple code. The code is in fact entirely within a single MAPLE object module. The auto generated code is ugly; fixing it is not feasible. Dealing with it by hand is not feasible.

If you have an ugly MAPLE proc, and just want to get a standard format for the code in the proc, you can print the proc in a maple command window and copy-past it back into the source file. *poof* it looks better. You loose the comments but who needs those anyway :...

Hi,

I'm trying to generate all the possible combinations of each M[i] according to the possible values for c,d and e. The code I have here generates some of them but not all - it misses out the combinations when the two or three elements in the square brackets are different ie. 

it generates
[{1}, [{1}, {1}], [{1}, {1}, {1}]]               
[{1}, [{2}, {2}], [{2}, {2}, {2}]]             

Hello guys,
I'm newb with Maple and trying to solve the following nonlinear recurrence system:

rsolve ({L(0)=1,L(n)=1.025*L(n-1),h(n)=L(n)/(1.1*L(n)-0.1*v(n-1)),v(0)=0.5,v(n)=(1+h(n))*v(n-1)},{L,h,v});

But Maple returns me nothing, no error. What's might be the problem?

Thanks in advance.

hey friends
how can i have program for following matrix of m x m order in maple 

In the following task procedure, when i>1, it works well,but if i=1, the task(M,1,5) returns error

Hello all,

I created an active high pass filter and tried to obtain bode plot from "Linear System Analysis."

I could do that but now I want a transfer function of the active hight pass filter.

So as in title, I want to know how to get transfer function of the system from "Linear System Analysis."

Any helps would be appriciated.

Yukihiro