Looking back at this question:

https://www.mapleprimes.com/questions/37691-How-Do-I-Change-The-Background-Colour

the reply by Hmm in 2009

"In Linux there is an X11 resource file for the classic worksheet, one of the settings controls the background color.  The distributed file is located in the maple/X11_defaults directory."

suggested a solution only thiis does not work for me in Maple2024. Perhaps because this worked for the classic view.

Why is there still no way to do this after 16 years or perhaps I just cannot find the option?

Is there away to change the background colour or even invert all colours?

I occasionally find myself inexplicably in a region of my worksheet that does not respond to my editing, fe.g., I cannot erae or I cannot copy. I recently typed a command-there was an error of some form and I tried unsuccessfully to edit it. Then I tried to copy the code and enter it at a prompt. It refused to enter it at the prompt but copied it below the prompt in a strnge region that I do not understand. When I retyped the command at a prompt it worked fine. I do not understand th dead regions that pop up mysteriously. (I am using Maple 2024 on a Mac) The page is too long to copy but I could upload it if given directions.

in this equation we have a list of a lot paramter which i have to find it but in prgress to find it some issue are appear i don't know how many term i have to replacing by algsubs there is any way for showing that something like lpring just for factoring and replacing if we did something like that in one step we can replacing all and then find our parameter there is any way for finding parameter like that?

Download pro.mw

in this integral PDE author did a substitution and the integral is simplify and removing how i can do that as mention in picture i did try but i think need a technique

Download int.mw

All three expressions define the same initial velocity condition in different notations.
ic1 := u(x, 0) = f, D[2](u)(x, 0) = g
ic2 := u(x, 0) = f, diff(u(x, 0), t) = g;
ic3 := u(x, 0) = f, u__t(x, 0) = g;  

Why does only ic1 work while ic2 and ic3 do not? Should I use another way?

wave_equation_1D.mw

Working on updating a very large and out of date guidebook and I need the content of execution cells to be 'Text' for illustrative purposes. It's tedious to constantly have to hit F5 for every, single, new, cell as I'm working through this. Is there a way I can just have the default style be 'Text' instead of 'Math'?  I can't seem to find that as an option anywhere.

Ctrl-j/k work fine for inserting a new execution prompt, why doesn't there seem to be a short cut for a new text prompt?  Ctrl+shift+j/k just enters a new line in the current execution prompt.  I'm on Linux using Maplesoft 2024.

I'm doing something wrong again in the attached file. Please advise.

test.mw

Hi everyone,

I'm having some trouble with plotting in Maple and was hoping to get some help here. I'm trying to create a plot for a specific function, but I'm not sure if I'm using the right commands or parameters. Here’s what I’m trying to do:

To plot the line plot(E3,nu=10^13..4.5*10^18);

and 

plot(E1(nu),nu=10^13..4.5*10^18); 

you can look around my calculus please advise.

Could someone please explain what might be going wrong with my approach? Any suggestions or examples of correct usage would be greatly appreciated.

Thanks in advance for your help!PLanckPh.mw

Hi,

I am trying to create a series of exercises ( Generate Similar) with a table layout (2x3), but my approach is not optimal. Any suggestions? Thanks

GenerateSimilar_Test.mw

So, MaplePrimes is now accessible again after an unprecedented 5-day outage. What happened? There was no announcement of the outage beforehand, making it seem like an accident. How could it take 5 days to recover from an accident? I don't see any differences yet, so it doesn't seem as if the software that runs MaplePrimes was being updated. There's usually some official announcement of these things, but I don't see any.

Is it possible to reduce the space between the plot title and the 3dplot in the attached file?

Plot_title_too_high.mw

I am trying to do something that was recommended in

https://math.stackexchange.com/questions/4583857/how-to-use-recursion-to-define-a-number-series-in-maple

but can't get the desired sequnce. See for example my code

v := proc(m) option remember; return m; end proc;
k := 5:
v(k + 1) := 0:
v(k):=1:
for i from k - 1 by -1 to 1 do
    v(i);
end do;

I get the output 1,1,1,1

I don't get it.

When I write the following code, I get an error and I cannot plot the graph. 

Please, I would appreciate your support

restart;                                                                                                                                              with(plots):                                                                                                                                            h:=(u)->sin((0.3)*u^2);                                                                                                                                         K:=(r,v,u)-> (factorial(2*r+3)*v^r*u^(r+2))/(factoral(r)*factoral(r+2)*(v+u)^(2*r+4));                                         w:=(r,j,a,u)->(u^j-1)/((1+u)^(r+j-1))*((a*u/(1+u))*binomial(r+j-1,j)-(1-a)*(1+u)*binomial(r+j-3,j-2)+(1-a)*u*binomial(r+j-1,j));                                                                                                                                 B:=(r,a,u)->sum(w(r,j,a,u)*h(j/r),j=0..infinity);                                                                                                  H:=(r,a,u)->int(K(r,v,u)*B(r,a,v),v=0..infinity);                                                                                                  p1:=plot(h(u),u=-1.5*Pi..1.5*Pi,color=blue):                                                                                                    p2:=plot(B(10,0.9,u),u=-1.5*Pi..1.5*Pi,color=red):                                                                                        p3:=plot(H(10,0.9,u),u=-1.5*Pi..1.5*Pi,color=brown):                                                                                    display([p1,p2,p3]);