He guys!

I had Maple 11 installed on my Mac, and yesterday upgraded to Maple 15, which was installed in a separate folder. My question is if I now can uninstall Maple 11 from my computer, or will Maple 15 need the files, since it was an upgrade, and no full version?

If I can uninstall it: How do I do it properly? I'm on a Mac with OS X 10.6. Maple 11 is installed in a separate folder in the applications folder. There is no uninstall file however. Is just dragging...

I have just upgraded from Maple 12 to Maple 14.  I opened an old file (Maple 12 format) and when I tried to use display to replot the data - there were capital letters where the fit line should be and the axes were also strange.  Is anyone else having this problem and what should I do about it.  Below is a copy of my info:

with(plots);
[animate, animate3d, animatecurve, arrow, changecoords, 

  complexplot, complexplot3d, conformal, conformal3d, 

I want to assign

D1:=-1/4*int((f*exp(-v*s)*(1+v*s)/v^3),0..infinity);

When I do this, it print f(x), v(x), s(x) in the integral and I don't want that...it should stay as f,v,s. Am I doing something wrong?

Hi,

a very simple problem, but nevertheless I am really struggling with it and would appreciate any help.

10.0/50.0;

This generates the output:  .20000000

However, I need the output in the format 0.20

I've already tried the numeric formatting dialogue but it didn't change anything.

Any hints?

Andrea

test := proc (value)
  local a, i:
  a := [jack, john, will]:
  for i in a do
    assign('i', value):
  end do:
  print(a);
end proc:

test(5);
                       [jack,john,will]

outside of the proc it works like I want it to

a:=[jack,john,will]
for i in a do
  assign('i',5):

I want to solve a series of differential equations, and then plot the results, but I'm having a bit of trouble with evaluating them using dsolve. My code is:

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

restart;

c:=1;
mu:=0.3;
m1:=1-mu;
m2:=mu;
x1:=mu;
x2:=mu-1;
omega1:=1/2(mu(1-mu)-3);
omega:=1+omega1/c^2;
r1:=sqrt((x(t)-x1)^2+y(t)^2);
r2:=sqrt((x(t)-x2)^2+y(t)^2);
A:=diff(y(t),t)*x(t)-diff(x(t),t)*y(t);
rsquared:=x(t)^2+y(t)^2;

restart:
with(StringTools):
Length("fc2c-cEImI0Qb1I#YZTdh7JyQ%3t#eUW7W,5,CMjUV/\WHv\rEYNLrBlkETbsy+");
                               61
Length("fc2c-cEImI0Qb1I#YZTdh7JyQ%3t#eUW7W,5,CMjUV/WHvrEYNLrBlkETbsy+");
                               61

I expect the first call to Length to return a value of 63.  The backslashes are being ignored.  Is this a "feature", or is the Length command not behaving as it should?

Is there a simple way to assign a single value to multiple variables?

just as an example, instead of labouriously entering a1:=5: a2:=5: a3:=5  ... a40:=5:

This way I present here doesn't work as I thought.

a:=[seq(a||i,i=1..40)]:

for ii in a do
  ii:=5:
end do:

a1;
                 a1

Any suggestions?

Hi Maple experts,

is there a way to tell Maple, that it only gives me the first 10 solutions it finds.

My problem is, that I have an equation

eq := f(x,a,b)=0

with probably millions of solution pairs

(a_0 , b_0).

I use

solve(eq, {a,b} )

Therefore, maple thinks the whole night, fills 2Gb of memory untill I have to interruped the calculation.

Indeed I need only 1 nontrivial solution (a,b)  !

I was wondering whether The Mathematics Survival Kit is now also available for Mac? When I downloaded it for version 14 it was a windows version which I was unable to use because I'm a Mac user... ;-( So I am concerned that when I buy it now for Maple 15 I might get another useless version...

Thanks for the help on my previous question.

I set up my dataset as follows:

points := [[2.612499, 16.24096], [3.437499, 14.21687], [3.437498, 11.22891], [3.437497, 8.192769], [4.262499, 6.361444], [5.224999, 7.662649], [7.974999, 7.51807], [10.175, 8.192769], [10.725, 9.59036], [12.375, 8.289155], [14.1625, 8.626504], [16.0875, 8.578312], [17.7375, 7.469878], [19.9375, 7.469878], [21.5875, 7.469878], [22.6875, 7.180721], [23.65, 8.289155], [24.0625, 9.638553...

I am new to Maple and I have not been able to figure out how to do something that should be very simple.

Using Maple to derive the conditions of a problem, I arrive at the following equation:

3*a(-1/3*b/a)^2+2*b(-1/3*b/a)+c = 0

By hand, I can simplify this equation, but I cannot figure out how to Maple to duplicate my result.

What steps do I need to go through to get the equation in the simplified form:

1/3*(3*a*c-b^2)/a = 0

Thanks.

Hi

I have a problem with an assigment for a Marine Construction claass:

Solving the non-dimensional vibration equation numerically (Eq. 2.1). To this end, implement the following transformation:

Z = dX/dT

Eq 2.1: diff(X(T), T, T)+a*(diff(X(T), T))+b*X(T) = C*(1-(diff(X(T), T)))*abs(1-(diff(X(T), T)))*sin(W*T)

I've tried to do the following:

> dsolve(diff(X(T), T, T)+a*(diff(X(T), T...

Hi

I'm trying to debug my module, but cannot find the problem! The problem areas are marked with red. Can you help?

Modul.mw

I want to do numerical differentiation and integration on a large data set.

How can I do?