Dear team,

Here below you can see a simple program containing 3 loops. The problem is  that even for low iterations the execution time seems endless. I kept this program running for over 10 minutes to no avail.   Could you help me? 

Here you are the technical details of my HP laptopper

Hi everyone,

I am trying to visualize the integral of x³ over the interval x=−1 to x=1. I tried using:

with(plots):
display(
   plot(x^3, x = -1 .. 1, color = black, thickness = 2),
   shadebetween(x^3, 0, x = -1 .. 1, color = cyan)
);

This works, but I wondered if there’s a better or more elegant way to visualize definite integrals. For example:

• Can I add transparency to the shaded region?
• Is there a built-in function that directly plots definite integrals with shading?
• Any tips for improving the aesthetics of such plots?

Thanks in advance for any help!

Download εμβαδόν_χωρίου.mw

Windows 10. From normal command line window:

"C:\Program Files\Maple 2024\bin.X86_64_WINDOWS\mint.exe" foo.mpl

Gives this

The file foo.mpl is

export module ODE() 
    option object; 
    export ode::`=`;
end module;

Notice the funny looking characters in the output.

Why does it happen?

Download hfz.mw

Hi! An basic and interesting issue.

First, why I run worksheet again and again, I will get different output (even seems understandable)? I guess maybe the memory is not renewed?

Second, how to obtain the periodic solution without adding ```k*Pi``` manually?

Download periodic_solution_of_a_simply_Sine_function.mw

i need the result for (eqt33) but i can reach the result there is any  other way for finding? i need to plot 3D of that function but without have the function how i can do explore on it

w1.mw

Is this a bug in mint?

Given this foo.mpl

foo:=proc()
    local x:=2,y:=3;       
        
    if MmaTranslator[Mma][LeafCount](x)<MmaTranslator[Mma][LeafCount](y)  then        
        0;
    else
       1;
    fi;  

end proc;   

It says

Procedure foo() on lines 2 to 11
  These names were used as global names but were not declared:  LeafCount, Mma

But if I rewrite the above using :- instead:

foo:=proc()
    local x:=2,y:=3;       
        
    if MmaTranslator:-Mma:-LeafCount(x)<MmaTranslator:-Mma:-LeafCount(y)  then        
        0;
    else
       1;
    fi;  

end proc;  

Now mint is happy and no message are given.

Is not  MmaTranslator:-Mma:-LeafCount(x)  the same as MmaTranslator[Mma][LeafCount](x) ?

Maple itself is happy with both. So why is mint complaining?

I am finding many problems with mint. Will post more problems found when I have more time.

Is mint still actively  maintained by Maplesoft? 

Hi Guys,

I encountered this rather unexpected behavior of Maple 18 when using the "read" function as shown below, where Maple fails to reduce the answer to 0, especially for (5). I'm curious if there's any deeper reason for this, and if there's a better or more standard solution than mine, that is, to use "parse( convert( expr, string ) )" as in (6)?

Thanks a lot!

Download test1.mw

Hi,

I am creating a multiple-choice questionnaire (MCQ) on functions, but the display of logarithmic functions is automatically converted to natural logarithms. How can I keep the logarithms displayed in base a without conversion? Thank you for your help.

S5_QCM_Expo_Log.mw

I found system remember tables mentioned under Details in ?CacheOption.

What exactly are they? Anything special about them?

The ProgrammingGuide does not given more details. It only mentions that there are "procedures that cannot use option system remember tables". For what reason a procedure cannot use them?

For the following limit determination, I do not get the known result 2, but only a term with LerchPhi. Please give me some advice.
lim(n-->oo)[(n/(2^n))*sum(k=1 to n) (2^k/k)]

I wish to plot two line segments over the intervals [0,1] and [2,3].  Maple 2024 draws a single line segment over [0,3].  Oddly enough, if I specify a color option, then it produces the expected result!

This used to work correctly in Maple 2023.  Perhaps this can be corrected in the forthcoming release?

>  restart; >  kernelopts(version); >  plots:-display(         plot(1, x=0..1),          plot(1, x=2..3), thickness=5); >  plots:-display(         plot(1, x=0..1),          plot(1, x=2..3),thickness=5, color=red);

Download mw.mw

Does this happen to you (ChatGPT session):

I am taking a course in quantum mechanics and trying to do the calculations in Maple.

In the worksheet below I try to solve a system of equations to find some constants. 

It isn't very relevant that the domain is physics. 

The issues I have are with manipulations of expressions (specifically, simplifications).

Download solve_constants.mw

In reality, I would like to the entirety of sqrt(2m(E-V__0)/hbar) a variable by the name of s.

Download simplify_roots.mw