Mapletrighelp.mw

Hi all,

I am calculating the following :

Fa:=(Fa1*cos(wt))*cos(theta)

Fb:=(Fa1*cos(wt-120))*cos(theta-120)

Fc:=(Fa1*cos(wt-240))*cos(theta-240)

Ftotal:=Fa+Fb+Fc

Ftotal:= Fa1*1/2(3*cos(wt-theta)+cos(wt+theta)+cos(wt+theta-240)+cos(wt+theta-480))

Problem:

The exact solution I am looking for is: Ftotal:=3/2*Fa1*cos(wt-theta...

when i try to solve the equation given below the following problem occured. pleae tell me how can i solve this boundary value problem.

> ode := diff(y(eta), eta, eta, eta)-(diff(y(eta), eta))*(diff(y(eta), eta))+y(eta)*(diff(y(eta), eta, eta)) = 0;
                                    ...

Hi, I am new to maple.  Is it possible to use desolve to obtain a numerical solution that gives both the solution y(x) and its derivative.

I am OK with sol:=dsolve({eq,ic}, numeric).  This will give me y(x), but I also need y'(x).

Thanks

Chris

It appears the wikipedia entry for Maple (software) is deeply in need of an overhaul to reflect new graphic modifications and for better eye candy. 

Not that it really matters but the graphics there are rather primitive and outdated. 

Dear All

Hi

I want to solve a non-homogeneous ordinary differential equation by Maple 15.

I tried solving that by issuing the following commands; however I could not.

> Digits:=40:

I am Maple admin for the Universiity of Tennessee site license.  I currently have two users who cannot open Maple 16.  This is the error they see:

------------------------------------------------------------------

The window header says:   Java Virtual Machine Launcher

The message in the window says:  Could not find the main class: Files.   Program will exit.”

-----------------------------------------------------------------

Hello everyone,

I have been trying to use MAPLE 16 for Boolean algebra computations. BooleanSimplify( ) command in Logic-Mathematics is giving me incorrect results, in the following code:

with(Logic):

f:=(not(x1)and not(x2) and not(x3)) or (x1 and x2 and x4);   #Create a 4 variable function f

g:=((x1 and x2) or (x2 and x3)) or (x3 and x4);    #Create another 4 variable function g

f2:=f &or g;

f3:=Canonicalize(f2,{x1,x2,x3,x4},form=DNF...

I have a set which is represented as a list L (in particular in L there are no repeated values!).

I would like to determine for which index j the element op(j,L) realizes the minimum of L. Is there a built-in function to accomplish this task?

More generally, call OL the list L rearranged in increasing order;  is there a way to determine the permutation which transforms the list L in the list OL?

Hi:

For many reasons, until recently, I have been always using Classic interface under Maple through Maple 16. When trying Maple 16 with Java interface I have noticed several quirks which were not present under the Classic interface of earlier versions through (at least) Maple 13. One of them is this:

The shortcut keys such as CTRL+Insert and SHIFT+Insert do not work and I am forced to use a mouse and copy/paste icons in Maple. This really slows down my keyboard...

Hi

I want to solve the equation of

F'''(x)+F(x)*F''(x)=0

with the following  boundary conditions

F(-5)=F'(-5)=0

F'(5)=0.14

for solving it numerically in the computational domain of [-5...5]. I have seprated the domain into two parts and the governing equation and boundary condition in each domain is assumed as follows

g'''(x)+g(x)*g''(x)=0
g(0)=alpha
g(-5)=0
g'(-5)=0

Here is my code:

restart:
with(LinearAlgebra):with(plots):with(ExcelTools):
n:=0.8:    e:=1:   h2:=0.01:
for N from 20 by 10 to 100 do
for b from 0.01 by 0.05 to 0.26 do
for h from 0.02 by 0.02 to 0.2 do
for h1 from 0.015 by 0.015 to 0.105 do
  A1:=proc(N::posint,b1,e1,h0,h11,h21) local M;
      M:=Matrix(N,(i,j)->if i=j then e elif abs(i-j)=1 then h else 0 fi);
      M[1,2...

When using "plotsetup(png,...)" the third rotational angle is ignored.  Attached are a worksheet and the corresponding three plots that demonstrate this bug.

Dear everyone,

  Hello,

  I have a question about how to get the power 'n' in an expression "(x+y)^n". For instance, I have a Maple code

******

eq1:=4*x^n*y^m+(x+y)^n+x^3;

f1:=map(t -> `if`(match(t = c*y^d, y, 's'), subs(s,d), NULL),
      convert(eq1, list));
f2:=map(t -> `if`(match(t = c*x^d, x, 's'), subs(s,d), NULL),
      convert(eq1, list));

It will be possible to manipulate this behavior with options "dsolve / event" or "dsolve / Error Control"?

> restart;
> Digits;                                10
> ode := sin(x(t))*(diff(x(t), t, t))+x(t)^3 = t*sin(x(t));

> ics := x(0) = 0, (D(x))(0) = 0;

> s := 250;

The explosion of cloud this - cloud that, is rather obvious now.

SO, I decided to check-out the cloud feature to my Maple? One problem, I cannot see - what is in it?

• Yes, I understand, you use the cloud palette in Maple.
• It shows the group, who the document / notebook is from, what it's title is? And such.
• _

• BUT, is there a web page - listing? hidden somewhere, on MaplePrimes or someplace on Maplesoft's service? (