Using Maple for Functions of a Random Variable

How to make a query is made to F (t) at each iteration of the dsolve command?...

restart;
de:=m*diff(x(t),t$2)+b(t)*diff(x(t),t)+k*x(t)=F(t);                 
a random force :
nd := Statistics:-Sample(Uniform(-100, 100)):
F:=proc(t) ;   
if not type(evalf(t),'numeric') then      

Hello,

  Excuse me, I have a code

****

for i from 1 to 5 do
  f[i]:=i*2;
print(i,f[i]);
end do:

****

  In windows, the output is

**

                              1, 2
    ...

I am a programmer (not a real mathematician, scientist or engineer) who wishes to insert just dx into an expression and have Maple recognise this as an infinitesimal difference in x rather than just a symbol named dx with no relation to x.

Is this possible in Maple?

I ask as I want to include dx as a normalising term in a derivation and hope that it will 'drop out' at a later stage.

Regards,

Will Furnass

Hi,

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

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

How do i find coordinates of the vertices of a square in Maple which coordinates of the vertices are integer numbers? Please help me. Thank you.

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?

Hi, I have variables and would like to assign different values to them and later on combine them for the final calculation. How do i do it? For example:

I have 5 variables in each file. (a,b,c,d,e).

It contributes to my Force, Amplitude, MatrixAA and MatrixBB

How do i put it in a way where i can have 3cases?

Case1:= a=1,b=2,c=3,d=1.5,e=6 ; And It shall give me Force1, Amplitude1, MatrixAA1, MatrixBB1
Case2:= a=3,b=3,c=1,d=3,e=8 ; And It shall...

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

Hi, whenever i save the worksheet, all my previous calculated solutions are missing and I need to execute it all over again. Is there a way to keep the previously run data because it is a long worksheet and takes quite sometime to run it. Please advice. Thanks.

I have a symbolic expression of the form:

I have Maple 13 which I was running successfully on a machine running Fedora 14 Linux.   I have the 64 bit version of Maple, but built into is it the license manager, which is a 32 bit program provided to Maplesoft by a third party vendor.

When I run xmaple, it starts up but brings up an activation page.  Activation won't work because the liccense manager doesn't work, and it can't recognize my order number.

I have been...

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));

Hi, I have quite a long worksheet. When i press enter one by one, the calculation comes out alright. But when I press the "!!!" sign which means execute entire worksheet, not all the equations run properly, is this a problem in Maple15 or am I using the command wrongly? Please advice. Thanks.

(a colored band on a torus)