I experience the following quirk using maple 2025 in worksheet mode: copy a formula and then paste it can often freeze the program. Termination only via ctrl-Alt-delete task manager. Has anybody similar problems or should i think that is happening only in my case?

I am working with two plots and need help in labeling,

Plot 1: I would like to display the intersection point of the two curves along with the corresponding value of δ (delta) at that point. Ideally, this can be highlighted using an arrow or annotation.

Plot 2: I would like to identify and mark the maximum point of the two curves. Specifically, I want to show the maximum value and the corresponding value of w at which this occurs.

Could anyone help with the syntax. Is there any method to improve the quality of figure to export it as jpeg?

Q_NEW_PLOT.mw

On maple I want solve this, is the best way plot angles by time?I put M,m,r,theta,phy and plot first and than the second equation?

Greetings,

I have generated two random points in the unit square.  Each point has an x and y coordinate.  The density function for the (absolute) distance between each point is (2-2d) in both the x and y direction.  These distances are shown by the "f" and "g" functions attached.

The overall (rectilinear) difference is what I am after.  The attached worksheet shows the rectilinear distance as "h".  

My question is this...how can I obtain this rectilinear distance by using convolution and the "starting" density function of (2-2d) ? 

This is probably more of a mathematics function than a Maple question, but the "rules" of convolution, particularly setting the upper and lower boundaries of the integrals confuse me.

DensityFunction.mw

in here i did all steps but i know something is missing becuase in finding parameter all x and y and t must be remove but still one x is remain so something is wrong with my substitution for finding parameter where is mistake ?

n1.mw

f(a).b;            #ok
                           (f(a)) . b

op(0, f(a).b);     #ok
                               .

lprint(f(a).b);    #ok
f(a) . b

f(7).b;            #???
                             f(7) b

op(0, f(7).b);     #???
                               *

lprint(f(7).b);    #???
f(7)*b

Hi! I need a help for solve PDE problem (diffusion problem) in bipolar system coordinates. Actually, to begin with, I wanted to try to solve the homogeneous diffusion equation in a bipolar coordinate system with given boundary conditions. The process is not stationary, for simplicity, the diffusion coefficient is a constant (or linearly depends on η). The source function is also specified on the right side. The problem is that I cannot construct a correct exact solution, and the PDESolve function gives a very strange solution. The question is whether it is possible to solve a homogeneous and then a non-homogeneous solution automatically, or will it be necessary to manually specify parts of the general solution (homogeneous and particular solution)?

A document with a brief description and code for solving the equation is provided in the file. I ask for help with solving this problem, any valuable comments will be useful!

PDE.mw

====UPDATE===
I try to set Neumann conditions for solve this problem, but get error:
Error, (in PDEtools:-Library:-NormalizeBoundaryConditions) unable to isolate the functions {u(0,eta), u(xi,1.1), u(2*Pi,eta)} in the given boundary conditions {u(0,eta) = u(2*Pi,eta), u(xi,1.1) = 0}

PDE_upd.mw

For practice, I would like to solve the following problem. It is from "Steven Weinberg, Gravitation and Cosmology, p. 7" and was posed in a NG. I planned to define coordinates (x_i; y_i), apply the Pythagorean theorem, and enter the tediously long terms as term1 and term2, respectively. The final result should be term1-term2=0, or "is" should be used. I failed to enter the coordinates - the error message "error=Null" appears.

Question:
How are coordinates and their names of the type described meaningfully defined and entered as term1 and term2, respectively?

The four points P_1, P_2, P_3, P_4 lie in the Euclidean plane. Let
(ij) be the square of the distance between P_i and P_j. Then, it must be proven that

(12)(12)(34)+(13)(13)(24)+(14)(14)(23)+(23)(23)(14)
+(24)(24)(13)+(34)(34)(12)+(12)(23)(31)+(12)(24)(41)
+(13)(34)(41)+(23)(34)(42)
=
(12)(23)( 34)+(13)(32)(24)+(12)(24)(43)+(14)(42)(23)
+(13)(34)(42)+(14)(43)(32)+(23)(31)(14)+(21)(13)(34)
+(24)(41)(13)+(21)(14)(43)+(31)(12)(24)+(32)(21)(14)

I have a contour plot, and I need to make the following modifications. Could anyone please guide me on how to change the syntax accordingly?
 

1. Remove grid lines (black lines) from my plot.

2. Swap the axes so that s2  appears on the Y-axis, ranging from 1000 to 7000. Currently, s2 is shown on the X-axis from 1 to 7.

3. Add a color scale (legend) for the contour values of stemp (with label), with formatted values like 1.47 × 10⁷ (scientific notation).
   
   Attaching my file with plot: S1_vs_s2_contour_plot.mw

I’ve attached (or described) a sample contour plot for reference.

When i paste the code , its not keeping its same outline as in the worksheet  ?
 using this 

I've tried changing typesetting from extended to standard, but nothing seems to work.  I got myself in some mode I cannot get out of.  I've restarted maple, and even rebooted.
 

Download sample.mw

here's a snapshot because the uploaded maple document looks  weird:

I am trying to display the results by substituting values into a table format after solving the KKT conditions. I attempted to do this using Maplet, but it did not give the desired output or flexibility.

Could you please guide me on:

• The correct way to capture and display substituted results in a table?

• Any alternative syntax or functions (other than Maplet) that are better suited for this purpose?

I would also like to confirm whether the substitution I made for the lower and upper bounds—specifically C_min value  and C_max value —has been done correctly. Could you please verify if this is the correct way to implement these bounds within the KKT formulation?

KKT_Table_Q-22.mw

I'm working on a system of coupled ordinary differential equations with multiple degrees of freedom. I would like to explore the existence of multiple solutions by using a bifurcation diagram. To this end, I tried using the built-in Bifurcation command in Maple. However, the command repeatedly returns errors and fails to produce the expected plots.

Has anyone successfully used the Bifurcation command in Maple for coupled ODE systems? Are there specific settings or prerequisites that I might be missing? I would greatly appreciate any guidance or example code demonstrating how to properly use this command for such systems.
bifurcation.mw

To organize windows, Windows 11 provides a new function "Snap Layout". The example screen shot below shows options to place the Maple 2025 Screen Reader window.  

Draging now Maple 2025.1 Screen Reader to the left window of the third option results in the following selection screen

where on the right a list of tasks to chose from is presented. In this list Maple 2025.1 is missing. However Maple 2025.1 was running as can be seen from the task bar.

Has anybody managed to position Maple 2025.1 windows with the Snap Layout (or alternatively with Win+Arrow keys) or at least reproduce what I see on my computer?

Why can a Maple 2025.1 window be adjusted by hand but Windows does not do this in Snap Layout?

(Dragging and adjusting a Maple window by hand is not an option. This is how we had to work before Windows 7.)

When optimizing with constraints, I’m getting an error: ‘NLP no feasible point’.

However, when I plot the graph, it shows a result — there appears to be a point where p1 is positive and s is maximized.

Could you help identify if there’s a syntax issue? Also, what’s the correct syntax to visualize the constraints in the plot?

Sheet: 07.mw