## Ordinary differential equations...

Hi guys,

This is the first time of solving partial differential equation, can some please help me point out some errows in my code.

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Fig. 3 (changing values of Ha):

 > P:= Ha: vals:= [1, 5, 10, 20]: sols:= [seq(Solve(P= v), v= vals)]: colors:= [red, green, blue]: for F in [v,theta,phi](y) do    print(plots:-display(       [seq(          plots:-odeplot(sols[k], [y,F], color= colors[k], legend= [P= vals[k]]),          k= 1..nops(vals)       )],       labeldirections= [horizontal,vertical]    )) od:
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## problem solve a system in maple...

i have a problem to solve this system ?

## How to transform a function plot by "shifting" hor...

Hello,

I will explain my problem on a simple function and some data.

mg:=78.54*7.85*1e-9*1000*9.81;l:=10000;l0:=12000;h:=0;H := 28.399;
eta:=mg*l/(2*H);
zeta:=arcsinh(mg*h/(2*H*sinh(eta)))-eta;
z:=H/mg*(cosh(mg/H*x+zeta)-cosh(zeta));
plot(z,x=0..l);


Above is a definition of an initial plot. Now I would like to draw a new plot in which every x coordinate is shifted horizontally by a function:

deltax:=H*arcsinh(x)-x;

As you see I can't use translate or scale so I've tried to use a transform function but I can't do it the right way.

I would be grateful for any ideas.

Greetings,

Iza

## Background Images...

Hei!

In my Maple project I want to put a simple sin graph on top of an image. But how do I create a background image with a graph on top?

## How do i link Maple into WordPress?...

I'm start making an homepage about mathematic and wondt to link a workpage writen in Maple 16 into WP, thanks to whose ho have any idea :)

## Please I need some one to help me with code for sy...

Helo, guys, i am a beginner here I want solve a system of first order differential equation using RK4. Please I need help please.

## no write permission? How am i saving worksheets to...

I am getting this error for pretty much everything now, i am using maple 16, and there literally is no way i will be able to buy a newer version considering

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## How i can get get exact solution to given pde...

PDE := diff(u(x, y), x, x)+diff(u(x, y), y, y)-6*x*y*(1-y)-2*x^3 = 0; BCsx := u(xL, y) = 0, u(xU, y) = y*(1-y); BCsy := u(x, yL) = 0, u(x, yU) = 0; solPDE := pdsolve({BCsx, BCsy, PDE}, u(x, y)); exactSol := unapply(rhs(%), x, y)

## Unknown Error For no apparent reason...

I am getting this error for almost everything that i write in maple today, and i simply have no idea what causes it or what it means

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## Why Simplify is working only for output labels and...

Hi, i will post the executed code so you can see what i am saying, essentially i want to know what i am doing wrong here to have simplify not work as a command line function but  it does when i right click the output and select it and the equation label of that output is inserted as the oprand.

I feel like maple is not wanting to be entirely forthcoming with me today or something, but in a more deeper contemplation, i see that refering to the maple interface as if it is a sentient entity is a true indication that i need a social life.

But as you will see, the same failure occurs for the ListTools partial sums feature when implemented in commandline code, but works perfectly well when it is selected by right clicking on the output intended

## How do I solve for the real part of a variable?...

Hi

I am trying to solve an inequality for the real parts of the solution to be less than 0. How do I do that? When trying to use solve, and specifying Re() Maple warns about lost solutions. I can see there are complex solutions to the equation, but i cannot make Maple calculate them. Maple gives me a range for the real solutions (6.1.11) and (6.1.12), but if I use a number out of the range the inequality is still met, the solutions is just complex, which does not matter. The variable a seems to be able to be between -8 and 3 for the real part of the solution to be less than 0.

Kind regards

Simon

## Help with my use of Document Tools again (please v...

The problem and the error in the attached worksheet.

https://www.maplesoft.com/support/help/errors/view.aspx?path=Error,%20(in%20DocumentTools:-GetProperty)%20input%20is%20ambiguous

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## How do I define a vector from its angle and length...

hey guys does anybody know if i can define a vector from its degree and lenght. instead of having to use coordinates?

the only way i know of defining a vector so far is

Vector1:=<x,y>

sorry my english is'nt the best

- Morten Lund

## simplify seems to have a bug here?...

I'm just unable to see how this could be correct, if someone can take a look it would be much appreciated.

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