Hi,

I'm trying to enter a statement on more than one line, but have done so without success. When I press Shift+Enter, Maple adds a new blank line without the command prompt ">".

Any ideas of what I'm doing wrong?

Thanks in advance,

Carlos Mallen

When I run the following Maple codes, for some reason I get an error:

> restart:with(DEtools):with(plots):

> ode:= diff(p(t), t) = r*(1.5-sin(2*t))*p(t);

> odePlot := DEplot(ode, P(t), t = -3 .. 3, P = 0 .. 1000);

Error, (in DEtools/DEplot/CheckDE) derivatives must be given explicitly

I'm not sure what it's talking about? I feel like I've done things like this many times in the past. Any help...

Friends,

I am very beginner of Maple softs, in order to proceed with my project i need to model a simple Human Knee joint and  to do its simulation, Somebody please help on this, otherwise i cant able to proceed with my project.

Waiting for a solution

Vinil

Update - April 4, 2011: I corrected a typo in Table 2, first column, bottom row.  What was sqrt(6) has been changed to sqrt(5).

Hi!

Exuse me, can somebody help me???

Maple kills my very important work. I work with Maple 13 and wrote big scientific programm.

I restart my computer, when i try to open file, which works normal yesterday, i saw something like this:

//   How do yo want to open this text file? //

Maple text     Plain text    Maple input   Cancel

Everything i try - no result,...

Hello,

I use the fellowing commands to get the figures which I want to insert in a microsoft word document.

sys3 := NewSystem((4*s^2+64*s+224)/(s^4+32*s^3+304*s^2+896*s));
BodePlot(sys3);

But the figures are too big. I want to change the figure size by using some commands, namely, make the figures smaller, but don't change the frequency (x-axes) and magnitude/phase (y-axes) of them. So after size-modifying, the figures can be inserted in a word document properly.

Hi

I'm trying to find the argument (or phase) of the following expression:

where r,d, and t are all positive real numbers. w is also a real number (although could be negative).

Can anyone give me hints as to the best way to do this in Maple? Thanks for thinking...

Any one got any ideas how I can prove that eq1:=-sinh(sqrt(mu)*X)/(X*sinh(sqrt(mu)))+1 is identically equal to eq2:=sum(2*(-1)^(n+1)*sin(Pi*n*X)*mu/(Pi*X*(mu+n^2*Pi^2)*n),n=1..infinity), where 0<=X<=1, mu>0?

If I plot the difference between the two I get ~0, and if for example I set X=0.5, mu=100, then eq1-eq2=0.  But I can't for the life of me figure out how to prove the two are mathematically identical?

I solved a larger problem using two different...

This is just a programmatic twist on Robert Lopez's very nice original post on this topic.

I'd rather be able to control such declarations with code, than to have to manipulate the palettes or context menus in order to get what are -- in essence -- additional programming and authoring tools. Such code can be dynamic and flexible, and could be inserted in Code- or Startup regions.

Download atomicpartials.mw

Let us  consider  the angle  --  arctan(1/ 
(5^(1/2)-1)*(10+2*5^(1/2))^(1/2)). By  using Wolfram Alfa  I can 
simplify it   to 2*Pi/5. But I cant  do the  simplifycation with 
Maple! Anyone can help? 

> u := 0.4e-1;
                              0.04
> k := 2.536427;
                            2.536427
> s := 9.466073;
         ...

Hello,

I have a two expressions...

on in terms of

sin(1/2*B*L) and sinh(1/2*B*L)

and another in terms of

sin(B*L) and sinh(B*L)

I'd like to use a half angle formula on the first to get it in terms of "B*L", then make a substitution into the second...I can't seem to figure out how to make maple do a 1/2 angle expansion....

any suggestions?