I am trying to solve a constrained maximization problem. 

The starting function is the one at the top in bold. Whenever I use (1/2) or (1) as an exponent for either of the variables I get unwanted results. For x₂ (below) I am getting that result. I should be getting x₂= (3m)/(5P₂)

However, whenever I input an exponent that does not equal (1/2), I get the results I want.

What am I doing wrong?

Hi,

Can somebody help me to find out why Maple can't completely solve this system of differential equations?

The answer to the previous command is

but I don't get the solution for u(x). This should be u(x)=-x+x^2/2.

Thanks for your help

I want to build interacitv plot ( slider+plot) ( inscribed cylinder in sphere) ?

Thanks

Hello everybody,

I am trying to solve the following integral which also has summation but it gives me strange results. Do anyone know if I am doing something wrong?

The equation is in black and the strange result is in blue.

Thank you !

Hello,

Whenever I export my Maple code to Latex, every line is exported twice. So the Latex code looks something like this:

\begin{Maple Normal}{
\begin{Maple Normal}{
\mapleinline{inert}{2d}{x := 3}{\[\displaystyle x\, := \,3\]}
}\end{Maple Normal}
}\end{Maple Normal}
\begin{maplegroup}
\begin{Maple Normal}{
\mapleinline{inert}{2d}{x := 3}{\[\displaystyle x\, := \,3\]}
}\end{Maple Normal}
\mapleresult
\begin{maplelatex}
\mapleinline{inert}{2d}{3}{\[\displaystyle 3\]}
\end{maplelatex}
\end{maplegroup}

I would be very grateful to anyone who could offer me a solution to this issue :) 

Vince

Greetings,

currently im working on a project in which i basically have to calcuate and plot a little solar system, using newton mechanic. The work is done, but as it appears, the solution simply cannot be true. In the given example you can see that the planets move in more or less straight lines. I presume that the error is somewhere in the solution of the system of differential equations, but i can't see where it is.

I am grateful for every advice.

PlanetenSpacecurve.mw

I m using the follwing commands for ploting the five differnt values of M

with(plots):
SDfd1 := odeplot(dsol[1], [eta, diff(f(eta), eta)], -1 .. 1, color = green, axes = box);
SDfd2 := odeplot(dsol[2], [eta, diff(f(eta), eta)], -1 .. 1, color = red, axes = box);
SDfd3 := odeplot(dsol[3], [eta, diff(f(eta), eta)], -1 .. 1, color = blue, axes = box);
SDfd4 := odeplot(dsol[4], [eta, diff(f(eta), eta)], -1 .. 1, color = black, axes = box);
SDfd5 := odeplot(dsol[5], [eta, diff(f(eta), eta)], -1 .. 1, color = pink, axes = box);
display([SDfd1, SDfd2, SDfd3, SDfd4, SDfd5], labels = ["η", "f ' (η)"],
    labeldirections = [horizontal, vertical], labelfont = [italic, 16], axes = boxed,
    axesfont = [times, 14], thickness = 3);

But i do not want in colors.....i need graph without colors in different styles. how can ? Moreover i need legend which must be in centre of graph or within the box. It must not on left, right ,up or below. can some one help ?

Hi everybody, 

Neither of these questions is vital but answers will be greatly appreciated

-------------------------------------------------------------------------------------------------
Question 1 :
Is it possible to manage programatically the character fonts in a printf command ?
(for instance to print some piece of text in bold font ... without selecting it and clicking the bold B of the toolbar)

-------------------------------------------------------------------------------------------------
Question 2 :

In order to have a nice render, I use to create my own format for printf command. For instance, when I have to “printf” some text I usually compute its length L and my “printf” format constructor contains a command  like  MyFormat := cat(“%”, L, “a”)

Unfortunately the length(…) command seems to be sensitive to accented characters :
                                     For people not familiar with french, "dégénéré"  (note the acute accents) means "degenerate".
length(“dégénéré”) returns 12
length(“degenere”) returns 8
… which of course leads to a very inelegant render, which is all I wanted to avoid

Why does “length” behave this way ?
Is it possible to bypass this annoyance while ensuring “dégénéré” has length 8 ?


Thanks in advance

Use the command 'matrix' to define a matrix, and how to call the first row elements of the matrix?

This method

a:=matrix([[1,2,3],[4,5,6],[7,8,9]]);

a[1..2,-2..-1], does not work? Why？

Download define-functions.mw

Hi

I would like to compute the limit as t goes to infinity.

Let delta be a given positive real number

restart;
assume(t, positive);

g := (t,delta) arrow  maximization(minimization(abs(x^(2^(-t))-y), y = 0 .. delta), x = 0 .. 1) ;

then I would like to compute the limit of g(t,delta) as t goes to infinity

Many thanks for any help

Hi

I would like to compute the limit as t goes to +infinity of

restart;
assume(t, positive);

g(t):=minimize(abs(x^(2^(-t))-1),x=1-delta.1+delta);

where delta is very small such that 1- delta is positive.

Then I would like to compute the limit as to goes to infinity of g(t)

Many thanks

Find the least number of moves and how many different ways that is achieved to win snakes and ladders with 1 die, with 2 dice, and how about 3 dice.  How to realize this with Maple?

Hello,

how do to inscribed cone in sphere ?

Thanks

Hi, i try the part of Real of the complex expression:

restart;
w := A*exp(-alfa(1+I)*y)+B*exp((1+i)*y);
            A exp(-alfa(1 + I) y) + B exp((1 + i) y)
u := Re(w);
          Re(A exp(-alfa(1 + I) y) + B exp((1 + i) y))

But does not work.

Regards.